diff --git a/Manual/contents/GameMaker_Language/GML_Reference/Asset_Management/Assets_And_Tags/asset_get_index.htm b/Manual/contents/GameMaker_Language/GML_Reference/Asset_Management/Assets_And_Tags/asset_get_index.htm
index f9f9e3d44..a6662dc52 100644
--- a/Manual/contents/GameMaker_Language/GML_Reference/Asset_Management/Assets_And_Tags/asset_get_index.htm
+++ b/Manual/contents/GameMaker_Language/GML_Reference/Asset_Management/Assets_And_Tags/asset_get_index.htm
@@ -16,8 +16,9 @@
 <body>
   <!--<div class="body-scroll" style="top: 150px;">-->
   <h1><span data-field="title" data-format="default">asset_get_index</span></h1>
-  <p>This function gets the handle for a game asset from its name.</p>
-  <p>If the asset is not found, the function will return a value of -1, otherwise it will return the handle for the asset being checked. This handle can then be used in other functions as you would any other handle, like <span class="inline2"><a data-xref="{title}" href="../Sprites/Sprite_Instance_Variables/sprite_index.htm">sprite_index</a></span> or <span class="inline2"><a data-xref="{title}" href="../Paths/Path_Variables/path_index.htm">path_index</a></span>, for example.</p>
+  <p>This function gets the handle for an <span data-keyref="Type_Asset"><a href="../../../../The_Asset_Editors/The_Asset_Editors.htm" target="_blank">Asset</a></span> from its name.</p>
+  <p class="note"><span data-conref="../../../../assets/snippets/Tag_note.hts"> </span> If an <span data-keyref="Type_Asset"><a href="../../../../The_Asset_Editors/The_Asset_Editors.htm" target="_blank">Asset</a></span> handle is passed, its index number is returned (similar to passing a handle into <span class="inline3_func"><a data-xref="{title}" href="../../Variable_Functions/real.htm">real</a></span>). </p>
+  <p>If the asset is not found, the function will return a value of -1. This handle can then be used in other functions as you would any other handle, like <span class="inline2"><a data-xref="{title}" href="../Sprites/Sprite_Instance_Variables/sprite_index.htm">sprite_index</a></span> or <span class="inline2"><a data-xref="{title}" href="../Paths/Path_Variables/path_index.htm">path_index</a></span>, for example.</p>
   <h3>Usage Notes</h3>
   <ul class="colour">
     <li>Although this function can be used to reference assets from strings (see the first example below), you should always make sure that the asset exists before using it. Otherwise, you may get errors that will crash your game.</li>
@@ -35,7 +36,7 @@ <h4>Syntax:</h4>
       </tr>
       <tr>
         <td>name</td>
-        <td><span data-keyref="Type_String"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">String</a></span></td>
+        <td><span data-keyref="Type_String"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">String</a></span> or <span data-keyref="Type_Asset"><a href="../../../../The_Asset_Editors/The_Asset_Editors.htm" target="_blank">Asset</a></span></td>
         <td>The name of the game asset to get the handle of (a string).</td>
       </tr>
     </tbody>
@@ -73,7 +74,7 @@ <h4>Example 2: &quot;MarkTagAsUsed&quot; pragma</h4>
         <div style="float:right">Next: <a data-xref="{title}" href="asset_get_type.htm">asset_get_type</a></div>
       </div>
     </div>
-    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2025 All Rights Reserved</span></h5>
+    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2026 All Rights Reserved</span></h5>
   </div>
   <!-- KEYWORDS
 asset_get_index
diff --git a/Manual/contents/GameMaker_Language/GML_Reference/Asset_Management/Instances/Instance_Variables/collision_space.htm b/Manual/contents/GameMaker_Language/GML_Reference/Asset_Management/Instances/Instance_Variables/collision_space.htm
index 6398f1f6f..d8f2cd73e 100644
--- a/Manual/contents/GameMaker_Language/GML_Reference/Asset_Management/Instances/Instance_Variables/collision_space.htm
+++ b/Manual/contents/GameMaker_Language/GML_Reference/Asset_Management/Instances/Instance_Variables/collision_space.htm
@@ -37,13 +37,15 @@ <h4>Example:</h4>
         <div style="float:right">Next: <a data-xref="{title}" href="alarm.htm">alarm</a></div>
       </div>
     </div>
-    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2025 All Rights Reserved</span></h5>
+    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2026 All Rights Reserved</span></h5>
   </div>
   <!-- KEYWORDS
 collision_space
+colspace
 -->
   <!-- TAGS
 collision_space
+colspace
 -->
 </body>
 </html>
\ No newline at end of file
diff --git a/Manual/contents/GameMaker_Language/GML_Reference/Drawing/Particles/particle_get_info.htm b/Manual/contents/GameMaker_Language/GML_Reference/Drawing/Particles/particle_get_info.htm
index d29786061..a1164cf4d 100644
--- a/Manual/contents/GameMaker_Language/GML_Reference/Drawing/Particles/particle_get_info.htm
+++ b/Manual/contents/GameMaker_Language/GML_Reference/Drawing/Particles/particle_get_info.htm
@@ -38,7 +38,7 @@ <h1><span data-field="title" data-format="default">particle_get_info</span></h1>
   <p>The tables below list all variables that are available in each of these three structs.</p>
   <p><a class="dropspot" data-rhwidget="DropSpot" data-target="drop-down" href="#">Particle System Info</a></p>
   <div class="droptext" data-targetname="drop-down">
-    <table id="particle_system_info_struct" style="caption-side: top">
+    <table id="particle_system_info_struct" style="caption-side: top" class=" cke_show_border">
       <caption>Particle System Info Struct</caption>
       <colgroup>
         <col style="width:33.33%" />
@@ -53,52 +53,52 @@ <h1><span data-field="title" data-format="default">particle_get_info</span></h1>
         </tr>
         <tr>
           <td><span class="inline">name</span></td>
-          <td><span data-keyref="Type_String"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">String</a></span></td>
-          <td>The name of the particle system asset, or an empty string <span class="inline2">&quot;&quot;</span> for a <span data-keyref="Type_ID_PartSys"><a href="Particle_Systems/part_system_create.htm" target="_blank">Particle System Instance</a></span> not created from a <span data-keyref="Type_Asset_ParticleSystem"><a href="../../../../The_Asset_Editors/Particle_Systems.htm" target="_blank">Particle System Asset</a></span>.</td>
+          <td><span data-keyref="Type_String"><a target="_blank" href="../../../GML_Overview/Data_Types.htm">String</a></span></td>
+          <td>The name of the particle system asset, or an empty string <span class="inline2">&quot;&quot;</span> for a <span data-keyref="Type_ID_PartSys"><a target="_blank" href="Particle_Systems/part_system_create.htm">Particle System Instance</a></span> not created from a <span data-keyref="Type_Asset_ParticleSystem"><a target="_blank" href="../../../../The_Asset_Editors/Particle_Systems.htm">Particle System Asset</a></span>.</td>
         </tr>
         <tr>
           <td><span class="inline">xorigin</span></td>
-          <td><span data-keyref="Type_Real"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">Real</a></span></td>
+          <td><span data-keyref="Type_Real"><a target="_blank" href="../../../GML_Overview/Data_Types.htm">Real</a></span></td>
           <td>The X coordinate of the particle system asset&#39;s origin. This will be 0 when the function is called on an instance that wasn&#39;t created from an asset.</td>
         </tr>
         <tr>
           <td><span class="inline">yorigin</span></td>
-          <td><span data-keyref="Type_Real"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">Real</a></span></td>
+          <td><span data-keyref="Type_Real"><a target="_blank" href="../../../GML_Overview/Data_Types.htm">Real</a></span></td>
           <td>The Y coordinate of the particle system asset&#39;s origin. This will be 0 when the function is called on an instance that wasn&#39;t created from an asset.</td>
         </tr>
         <tr>
           <td><span class="inline">xdraw</span></td>
-          <td><span data-keyref="Type_Real"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">Real</a></span></td>
+          <td><span data-keyref="Type_Real"><a target="_blank" href="../../../GML_Overview/Data_Types.htm">Real</a></span></td>
           <td>The X coordinate of the draw position for a particle system instance (see <span class="inline3_func"><a data-xref="{title}" href="Particle_Systems/part_system_position.htm">part_system_position</a></span>). This will be 0 when the function is called on an asset.</td>
         </tr>
         <tr>
           <td><span class="inline">ydraw</span></td>
-          <td><span data-keyref="Type_Real"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">Real</a></span></td>
+          <td><span data-keyref="Type_Real"><a target="_blank" href="../../../GML_Overview/Data_Types.htm">Real</a></span></td>
           <td>The Y coordinate of the draw position for a particle system instance (see <span class="inline3_func"><a data-xref="{title}" href="Particle_Systems/part_system_position.htm">part_system_position</a></span>). This will be 0 when the function is called on an asset.</td>
         </tr>
         <tr>
           <td><span class="inline">angle</span></td>
-          <td><span data-keyref="Type_Real"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">Real</a></span></td>
+          <td><span data-keyref="Type_Real"><a target="_blank" href="../../../GML_Overview/Data_Types.htm">Real</a></span></td>
           <td>The angle of the particle system instance (see <span class="inline3_func"><a data-xref="{title}" href="Particle_Systems/part_system_angle.htm">part_system_angle</a></span>).</td>
         </tr>
         <tr>
           <td><span class="inline">color</span></td>
-          <td><span data-keyref="Type_Constant_Colour"><a href="../Colour_And_Alpha/Colour_And_Alpha.htm" target="_blank">Colour</a></span></td>
+          <td><span data-keyref="Type_Constant_Colour"><a target="_blank" href="../Colour_And_Alpha/Colour_And_Alpha.htm">Colour</a></span></td>
           <td>The blend colour of the particle system instance (see <span class="inline3_func"><a data-xref="{title}" href="Particle_Systems/part_system_colour.htm">part_system_colour</a></span>).</td>
         </tr>
         <tr>
           <td><span class="inline">global_space</span></td>
-          <td><span data-keyref="Type_Bool"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">Boolean</a></span></td>
+          <td><span data-keyref="Type_Bool"><a target="_blank" href="../../../GML_Overview/Data_Types.htm">Boolean</a></span></td>
           <td>Whether this particle system has global space particles enabled (see <span class="inline3_func"><a data-xref="{title}" href="Particle_Systems/part_system_global_space.htm">part_system_global_space</a></span>).</td>
         </tr>
         <tr>
           <td><span class="inline">oldtonew</span></td>
-          <td><span data-keyref="Type_Bool"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">Boolean</a></span></td>
+          <td><span data-keyref="Type_Bool"><a target="_blank" href="../../../GML_Overview/Data_Types.htm">Boolean</a></span></td>
           <td>Whether old particles should be drawn behind new ones (<span class="inline2">true</span>) or not (<span class="inline2">false</span>).</td>
         </tr>
         <tr>
           <td><span class="inline">emitters</span></td>
-          <td><span data-keyref="Type_Array"><a href="../../../GML_Overview/Arrays.htm" target="_blank">Array</a></span> of <span data-keyref="Type_Struct_PartEmitter_Info"><a href="particle_get_info.htm#particle_emitter_info_struct" target="_blank">Particle Emitter Info Struct</a></span></td>
+          <td><span data-keyref="Type_Array"><a target="_blank" href="../../../GML_Overview/Arrays.htm">Array</a></span> of <span data-keyref="Type_Struct_PartEmitter_Info"><a target="_blank" href="particle_get_info.htm#particle_emitter_info_struct">Particle Emitter Info Struct</a></span></td>
           <td>An array of emitter info structs, ordered the same as in <a data-xref="{title}" href="../../../../The_Asset_Editors/Particle_Systems.htm">The Particle System Editor</a>.</td>
         </tr>
       </tbody>
@@ -455,20 +455,48 @@ <h1><span data-field="title" data-format="default">particle_get_info</span></h1>
         <tr>
           <th colspan="3">Color &amp; Alpha</th>
         </tr>
+        <tr>
+          <td><span class="inline">color_mode</span></td>
+          <td><span data-keyref="Type_Real"><a href="../../../GML_Overview/Data_Types.htm" target="_blank">Real</a></span></td>
+          <td>The color mode of the particle type. Can be one of these values:<br />
+            <br />
+            0: Uses only one colour (<span class="inline">color1</span>)<br />
+            1: Interpolates between two colours over time (<span class="inline">color1</span>, <span class="inline">color2</span>)<br />
+            2: Interpolates between three colours over time (<span class="inline">color1</span>-<span class="inline">3</span>)<br />
+            3: Uses RGB range values (<span class="inline">color1</span>-<span class="inline">6</span> represent the parameters in order)<br />
+            4: Uses HSV range values (<span class="inline">color1</span>-<span class="inline">6</span> represent the parameters in order)<br />
+            5: Mixes two colours (<span class="inline">color1</span>, <span class="inline">color2</span>)
+          </td>
+        </tr>
         <tr>
           <td><span class="inline">color1</span></td>
           <td><span data-keyref="Type_Constant_Colour"><a href="../Colour_And_Alpha/Colour_And_Alpha.htm" target="_blank">Colour</a></span></td>
-          <td>The color of the particle when created.</td>
+          <td>See <span class="inline">color_mode</span> description above for value</td>
         </tr>
         <tr>
           <td><span class="inline">color2</span></td>
           <td><span data-keyref="Type_Constant_Colour"><a href="../Colour_And_Alpha/Colour_And_Alpha.htm" target="_blank">Colour</a></span></td>
-          <td>The color of the particle when halfway through its lifespan.</td>
+          <td>See <span class="inline">color_mode</span> description above for value</td>
         </tr>
         <tr>
           <td><span class="inline">color3</span></td>
           <td><span data-keyref="Type_Constant_Colour"><a href="../Colour_And_Alpha/Colour_And_Alpha.htm" target="_blank">Colour</a></span></td>
-          <td>The color of the particle at the end of its lifespan.</td>
+          <td>See <span class="inline">color_mode</span> description above for value</td>
+        </tr>
+        <tr>
+          <td><span class="inline">color4</span></td>
+          <td><span data-keyref="Type_Constant_Colour"><a href="../Colour_And_Alpha/Colour_And_Alpha.htm" target="_blank">Colour</a></span></td>
+          <td>See <span class="inline">color_mode</span> description above for value (only used for RGB, HSV modes)</td>
+        </tr>
+        <tr>
+          <td><span class="inline">color5</span></td>
+          <td><span data-keyref="Type_Constant_Colour"><a href="../Colour_And_Alpha/Colour_And_Alpha.htm" target="_blank">Colour</a></span></td>
+          <td>See <span class="inline">color_mode</span> description above for value (only used for RGB, HSV modes)</td>
+        </tr>
+        <tr>
+          <td><span class="inline">color6</span></td>
+          <td><span data-keyref="Type_Constant_Colour"><a href="../Colour_And_Alpha/Colour_And_Alpha.htm" target="_blank">Colour</a></span></td>
+          <td>See <span class="inline">color_mode</span> description above for value (only used for RGB, HSV modes)</td>
         </tr>
         <tr>
           <td><span class="inline">alpha1</span></td>
@@ -578,7 +606,7 @@ <h4>Example 2: Listing Emitter Names</h4>
         <div>Next: <a data-xref="{title}" href="particle_add.htm">particle_add</a></div>
       </div>
     </div>
-    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2025 All Rights Reserved</span></h5>
+    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2026 All Rights Reserved</span></h5>
   </div>
   <!-- KEYWORDS
 particle_get_info
diff --git a/Manual/contents/GameMaker_Language/GML_Reference/Flex_Panels/Flex_Panels_Styling.htm b/Manual/contents/GameMaker_Language/GML_Reference/Flex_Panels/Flex_Panels_Styling.htm
index c95d2683c..a80118c16 100644
--- a/Manual/contents/GameMaker_Language/GML_Reference/Flex_Panels/Flex_Panels_Styling.htm
+++ b/Manual/contents/GameMaker_Language/GML_Reference/Flex_Panels/Flex_Panels_Styling.htm
@@ -19,6 +19,8 @@ <h1><span data-field="title" data-format="default">Flex Panel Struct Members</sp
   <p>When creating a new <span data-keyref="FlexPanel">Flex Panel</span> node using <span class="inline3_func"><a data-xref="{title}" href="Function_Reference/flexpanel_create_node.htm">flexpanel_create_node</a></span>, you can pass a struct containing information on the node and its children, or a string containing JSON for the same data. For example:</p>
   <div data-conref="../../../assets/snippets/Flex_Panel_example_create_node_with_struct.hts"> </div>
   <p>This defines a root node with child nodes nested within it (and further child nodes within child nodes).</p>
+  <h2>UI Layer Properties</h2>
+  <p>The Flex Panel system is used for <a data-xref="{title}" href="../../../The_Asset_Editors/Room_Properties/UI_Layers.htm">UI Layers</a> in the Room Editor. For more visual documentation on the shared properties, see: <a data-xref="{title}" href="../../../The_Asset_Editors/Room_Properties/UI_Element_Propert.htm">UI Element Properties</a></p>
   <h2>Property List</h2>
   <p>The properties that you can define in the struct or JSON string are listed below. The rest of the page describes each property in detail.</p>
   <p>Structs retrieved for nodes (e.g. <span class="inline3_func"><a data-xref="{title}" href="Function_Reference/flexpanel_node_get_child.htm">flexpanel_node_get_child</a></span> or <span class="inline3_func"><a data-xref="{title}" href="../Asset_Management/Rooms/UI_Layers/layer_get_flexpanel_node.htm">layer_get_flexpanel_node</a></span>) using <span class="inline3_func"><a data-xref="{title}" href="Function_Reference/flexpanel_node_get_struct.htm">flexpanel_node_get_struct</a></span> will include the same variables listed below.</p>
@@ -247,7 +249,7 @@ <h3>Layer Elements</h3>
         <li>instanceObjectIndex (Object Handle)</li>
         <li>instanceId (Instance Handle)</li>
         <li>elementId (Element Handle): Element of the instance in the layer</li>
-        <li>instanceVariables (Struct): Contains the Variable Definitions set up for the object, with the variable name as the key and the variable value as the key value</li>
+        <li>instanceVariables (Struct): Contains the Variable Definitions set up for the object, with the variable name as the key and the variable value as the key value. (<span data-conref="../../../assets/snippets/Tag_note.hts"> </span> You cannot set read-only variables or the depth as it is controlled by the layer.)</li>
         <li>instanceOffsetX, instanceOffsetY, instanceScaleX, instanceScaleY, instanceAngle, instanceImageSpeed, instanceImageIndex (Real)</li>
         <li>instanceColour (Colour)</li>
       </ul>
@@ -294,7 +296,7 @@ <h3>Clip Content</h3>
         <div>Next: <a data-xref="{title}" href="Function_Reference/section_index.htm">Flex Panel Functions</a></div>
       </div>
     </div>
-    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2025 All Rights Reserved</span></h5>
+    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2026 All Rights Reserved</span></h5>
   </div>
   <!-- KEYWORDS
 Flex_Panels_Styling
diff --git a/Manual/contents/GameMaker_Language/GML_Reference/Flex_Panels/Function_Reference/flexpanel_create_node.htm b/Manual/contents/GameMaker_Language/GML_Reference/Flex_Panels/Function_Reference/flexpanel_create_node.htm
index fb18bc327..60c737ac9 100644
--- a/Manual/contents/GameMaker_Language/GML_Reference/Flex_Panels/Function_Reference/flexpanel_create_node.htm
+++ b/Manual/contents/GameMaker_Language/GML_Reference/Flex_Panels/Function_Reference/flexpanel_create_node.htm
@@ -18,11 +18,6 @@ <h1><span data-field="title" data-format="default">flexpanel_create_node</span><
   <p>This function creates a new <span data-keyref="FlexPanel">Flex Panel</span> node.</p>
   <p>You can optionally pass either a JSON string or a struct containing the node&#39;s properties, which are <a href="../Flex_Panels_Styling.htm">described here</a>. These properties can also be set later using other <a data-xref="{title}" href="section_index.htm">Flex Panel Functions</a>.</p>
   <p>The returned node can be <a href="flexpanel_node_insert_child.htm">inserted into another node</a> as a child. When you no longer need a node, you must <a href="flexpanel_delete_node.htm">delete it</a> otherwise it will continue to stay in memory.</p>
-  <h3>Usage Notes</h3>
-  <ul class="colour">
-    <li>When using a struct to create a node, the struct passed into the function will be used to store the created node&#39;s data and the same struct will be modified when any modifications are performed on the node. This means that passing the same struct variable into multiple calls to this function will result in the same node being returned. You can run <span class="inline3_func"><a data-xref="{title}" href="../../Variable_Functions/variable_clone.htm">variable_clone</a></span> on your struct variable before passing it into this function to ensure a copy is made and the original struct is not referenced in the created node.</li>
-  </ul>
-  <p> </p>
   <p> </p>
   <h4>Syntax:</h4>
   <p class="code"><span data-field="title" data-format="default">flexpanel_create_node</span>([struct_or_json])</p>
@@ -55,7 +50,7 @@ <h4>Example 1: Creating An Empty Node</h4>
   <p> </p>
   <h4>Example 2: Passing a Struct</h4>
   <div data-conref="../../../../assets/snippets/Flex_Panel_example_create_node_with_struct.hts"> </div>
-  <p>This creates a node using a struct. That struct contains information on the properties of the root node and all of its nested children.</p>
+  <p>This creates a node using a struct. That struct contains information on the properties of the root node and all of its nested children, which is copied to create the <span data-keyref="Type_ID_FlexPanel_Node"><a href="flexpanel_create_node.htm" target="_blank">Flex Panel Node</a></span> struct.</p>
   <p> </p>
   <h4>Example 3: Passing a JSON String</h4>
   <p class="code">n_root = flexpanel_create_node(@&#39;{<br />
@@ -87,7 +82,7 @@ <h4>Example 3: Passing a JSON String</h4>
         <div>Next: <a data-xref="{title}" href="flexpanel_delete_node.htm">flexpanel_delete_node</a></div>
       </div>
     </div>
-    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2024 All Rights Reserved</span></h5>
+    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2026 All Rights Reserved</span></h5>
   </div>
   <!-- KEYWORDS
 flexpanel_create_node
diff --git a/Manual/contents/IDE_Tools/Prefab_Library.htm b/Manual/contents/IDE_Tools/Prefab_Library.htm
index 50e31774d..9110c0929 100644
--- a/Manual/contents/IDE_Tools/Prefab_Library.htm
+++ b/Manual/contents/IDE_Tools/Prefab_Library.htm
@@ -39,6 +39,7 @@ <h2>Using Prefab Assets</h2>
     <li>Use <a href="../The_Asset_Editors/Sounds.htm">Sound</a> assets in <a data-xref="{title}" href="../The_Asset_Editors/Sequences.htm">The Sequence Editor</a></li>
     <li>Use <a href="../The_Asset_Editors/Tile_Sets.htm">Tile Set</a> assets in <a data-xref="{title}" href="../The_Asset_Editors/Rooms.htm">The Room Editor</a></li>
   </ul>
+  <p class="note"><span data-conref="../assets/snippets/Tag_note.hts"> </span> You cannot use assets from different versions of the same Prefab Collection in one project. If you do so, you will be prompted to upgrade uses of the older version to the new one for consistency.</p>
   <p>Assets from Prefab Collections will not be visible in the Asset Browser, however they will be shown in the Asset Explorers from asset editors (e.g. when selecting a Sprite for an Object). They can also be dragged from the Prefab Library or be used in code (only when the project has a reference to the Collection, see the section below).</p>
   <p>When a Prefab Asset is used in any editor, it&#39;s shown with an <span style="color:#ffb266">orange </span>highlight as shown below. When inspecting an asset such as an Object, the usual <img alt="Edit Sprite Icon" class="icon" src="../assets/Images/Icons/Icon_EditSprite.png" /> &quot;Edit Sprite&quot; button is replaced with the <img class="icon" src="../assets/Images/Icons/Icon_OpenPrefab.png" /> &quot;Open Prefab&quot; button which opens the Prefab Library with the used asset selected.</p>
   <p><img class="center" src="../assets/Images/IDE Tools/Prefabs/prefab_usage_highlight.png" /></p>
@@ -117,7 +118,9 @@ <h2 id="prefab_library_features">Prefab Library Features</h2>
       </ul>
     </li>
     <li><strong>Package Manager</strong>: This button opens the <a data-xref="{title}" href="Package_Manager.htm">Package Manager</a> where you can install any new Prefab Collections or delete the ones that you have installed.</li>
-    <li><strong>Folder List</strong>: A list of folders from imported Prefab Collections. Selecting a folder here will show its contents in the Contents view if enabled. You can use the <span class="shortcut">UP</span> and <span class="shortcut">DOWN</span> arrow keys to navigate the list and <span class="shortcut">ENTER</span> to expand/collapse a folder or view its contents in the Contents view if there are no child folders.<br />
+    <li><strong>Folder List</strong>: A list of folders from installed Prefab Collections. Selecting a folder here will show its contents in the Contents view if enabled. If you have multiple versions of the same Prefab Collection package installed, they will all be shown in this list and you can choose which version to use (however you can only use assets from one version in the same project).<br />
+      <br />
+      You can use the <span class="shortcut">UP</span> and <span class="shortcut">DOWN</span> arrow keys to navigate the list and <span class="shortcut">ENTER</span> to expand/collapse a folder or view its contents in the Contents view if there are no child folders.<br />
       <br />
       Use <span class="shortcut">CTRL+LMB</span> or <span class="shortcut">SHIFT+LMB</span> to select multiple assets/folders so you can run operations on them all at once (e.g. customise, duplicate). Selecting multiple folders in this list will display the contents of all selected folders in the Content View (to the right by default).
     </li>
@@ -134,19 +137,26 @@ <h2 id="prefab_library_features">Prefab Library Features</h2>
   <p>The bottom bar of the window displays the number of items in the selected folder or the number of Collections if no folder is selected.</p>
   <h3>RMB Menu</h3>
   <p>Right-clicking on any item or selection in the Prefab Library displays the following options:</p>
+  <p class="note"><span data-conref="../assets/snippets/Tag_note.hts"> </span> Not all of these options may appear at the same time as some depend on the type of item (folder, Collection or asset) and other settings.</p>
   <ul class="colour">
     <li><strong>Make Favourite</strong>: Add the selected folder or asset to Favourites. Your Favourites can be viewed from the <img class="icon" height="16" src="../assets/Images/Icons/Icon_ExtensionMenu.png" width="16" /> <strong>Sort/Filter</strong> menu.</li>
     <li><strong>Add/Remove Collection Reference</strong>: Add or remove a reference to this Collection in the current project. When the project has a reference to the Collection, assets from the Collection can be referenced in code.</li>
     <li><strong>Customise</strong>: This adds the selected asset or all assets under the selected folder to the Asset Browser where you can customise its properties. See: <a href="#custom">Customising Prefabs</a></li>
     <li><strong>Reinstall Prefab Collection</strong>: This reinstalls the package associated with the Prefab Collection. Use this in case you are facing any errors or unintended behaviour with the Prefab Collection.</li>
+    <li><strong>Upgrade Prefab Collection</strong>: If a newer package version of this Collection is installed, upgrade to that version.</li>
     <li><strong>Uninstall Prefab Collection</strong>: This uninstalls the Prefab Collection and the package associated with it. This is useful in cases where the version of the Prefab Collection you have installed no longer exists in the Package Manager and you would be unable to uninstall it from there. (<span data-conref="../assets/snippets/Tag_note.hts"> </span> You cannot use this option if the Prefab Collection is being used in the currently open project.)</li>
     <li><strong>Duplicate into Project</strong>: This duplicates the selected asset (or all assets in the selected Collection/folder) into your project as a local asset, i.e. the asset becomes unlinked from its Collection and is fully editable as part of the current project. It will no longer be updated if there are changes to the source asset in the Collection.
       <ul>
         <li>When used on a Collection or a folder in a Collection, this process is recursive, i.e. it duplicates assets in all subfolders present within the selected folder and all subfolders within them, and so on.</li>
       </ul>
     </li>
-    <li><strong>Show In Inspector</strong>: Show the selected asset in <a data-xref="{title}" href="The_Inspector.htm">The Inspector</a>.</li>
-    <li><strong>Show in Package Manager</strong>: This opens the <a data-xref="{title}" href="Package_Manager.htm">Package Manager</a> with the package for this Collection selected, so you can check for new versions or make any other changes to the source package.</li>
+    <li><strong>Show In Inspector</strong>: Show the selected asset in <a data-xref="{title}" href="The_Inspector.htm">The Inspector</a>.
+      <hr />
+    </li>
+    <li><strong>Change Prefab Collection Versions</strong>: Opens a window that allows you to change the version of each Prefab Collection used for the current project.</li>
+    <li><strong>Show in Package Manager</strong>: This opens the <a data-xref="{title}" href="Package_Manager.htm">Package Manager</a> with the package for the Collection selected, so you can check for new versions or make any other changes to the source package.
+      <hr />
+    </li>
     <li><strong>Expand/Collapse Children</strong>: This option is available in the Folder List. It expands or collapses all folders under the selected folder.</li>
     <li><b>Expand/Collapse All: </b>This option is available in the Folder List. It expands or collapses all folders in the tree view.</li>
   </ul>
diff --git a/Manual/contents/The_Asset_Editors/Room_Properties/UI_Element_Propert.htm b/Manual/contents/The_Asset_Editors/Room_Properties/UI_Element_Propert.htm
index 6c803f351..db1309f23 100644
--- a/Manual/contents/The_Asset_Editors/Room_Properties/UI_Element_Propert.htm
+++ b/Manual/contents/The_Asset_Editors/Room_Properties/UI_Element_Propert.htm
@@ -16,8 +16,7 @@
   <!--<div class="body-scroll" style="top: 150px;">-->
   <h1><span data-field="title" data-format="default">UI Element Properties</span></h1>
   <p>The Element List displays all UI layers and all parts of a UI layer, including Flex Panels and assets:</p>
-  <p><img class="center" src="../../assets/Images/Asset_Editors/UILayers/UIL_ElementList.png" />You can select a UI layer, Flex Panel or Asset Element in the Element List and its properties will be shown in <a data-xref="{title}" href="../../IDE_Tools/The_Inspector.htm">The Inspector</a>.</p>
-  <p>Besides being able to change the Element name and associated asset (if any), there are other properties which are described below for each type of Element.</p>
+  <p><img class="center" src="../../assets/Images/Asset_Editors/UILayers/UIL_ElementList.png" />You can select a UI layer, Flex Panel or Asset Element in the Element List and its properties will be shown in <a data-xref="{title}" href="../../IDE_Tools/The_Inspector.htm">The Inspector</a>. Besides being able to change the Element name and associated asset (if any), there are other properties which are described below for each type of Element.</p>
   <p>These properties are represented at runtime by the <a data-xref="{title}" href="../../GameMaker_Language/GML_Reference/Flex_Panels/Flex_Panels_Styling.htm">Flex Panel Struct Members</a>.</p>
   <h2>UI Layer Properties</h2>
   <p><img class="center" src="../../assets/Images/Asset_Editors/UILayers/UIL_Properties.png" />A UI layer contains the following main properties:</p>
@@ -114,7 +113,7 @@ <h3>Extra Options</h3>
         <div style="float:right">Next: <a data-xref="{title}" href="UI_Layers_At_Runtime.htm">UI Layers At Runtime</a></div>
       </div>
     </div>
-    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2025 All Rights Reserved</span></h5>
+    <h5><span data-keyref="Copyright Notice">© Copyright YoYo Games Ltd. 2026 All Rights Reserved</span></h5>
   </div>
   <!-- KEYWORDS
 UI Element Properties

Color & Alpha
name	String	The name of the particle system asset, or an empty string "" for a Particle System Instance not created from a Particle System Asset.	String	The name of the particle system asset, or an empty string "" for a Particle System Instance not created from a Particle System Asset.
xorigin	Real	Real	The X coordinate of the particle system asset's origin. This will be 0 when the function is called on an instance that wasn't created from an asset.
yorigin	Real	Real	The Y coordinate of the particle system asset's origin. This will be 0 when the function is called on an instance that wasn't created from an asset.
xdraw	Real	Real	The X coordinate of the draw position for a particle system instance (see part_system_position). This will be 0 when the function is called on an asset.
ydraw	Real	Real	The Y coordinate of the draw position for a particle system instance (see part_system_position). This will be 0 when the function is called on an asset.
angle	Real	Real	The angle of the particle system instance (see part_system_angle).
color	Colour	Colour	The blend colour of the particle system instance (see part_system_colour).
global_space	Boolean	Boolean	Whether this particle system has global space particles enabled (see part_system_global_space).
oldtonew	Boolean	Boolean	Whether old particles should be drawn behind new ones (true) or not (false).
emitters	Array of Particle Emitter Info Struct	Array of Particle Emitter Info Struct	An array of emitter info structs, ordered the same as in The Particle System Editor.
color_mode	Real	The color mode of the particle type. Can be one of these values: + + 0: Uses only one colour (color1) + 1: Interpolates between two colours over time (color1, color2) + 2: Interpolates between three colours over time (color1-3) + 3: Uses RGB range values (color1-6 represent the parameters in order) + 4: Uses HSV range values (color1-6 represent the parameters in order) + 5: Mixes two colours (color1, color2) +
color1	Colour	The color of the particle when created.	See color_mode description above for value
color2	Colour	The color of the particle when halfway through its lifespan.	See color_mode description above for value
color3	Colour	The color of the particle at the end of its lifespan.	See color_mode description above for value
color4	Colour	See color_mode description above for value (only used for RGB, HSV modes)
color5	Colour	See color_mode description above for value (only used for RGB, HSV modes)
color6	Colour	See color_mode description above for value (only used for RGB, HSV modes)
alpha1