Allow per-stage briefing grid colors

code/mission/missionparse.cpp

@@ -9063,3 +9063,15 @@ bool check_for_24_1_data()
 
 	return false;
 }
+
+bool check_for_25_0_data()
+{
+	for (int i = 0; i < Num_teams; i++) {
+		for (int j = 0; j < Briefings[i].num_stages; i++) {
+			if (!gr_compare_color_values(Briefings[i].stages[j].grid_color, Color_briefing_grid)) {
+				return true;
+			}
+		}
+	}
+	return false;
+}

code/mission/missionparse.h

@@ -57,6 +57,7 @@ extern const gameversion::version LEGACY_MISSION_VERSION;
 // a "soft version bump" rather than a hard bump because not all missions are affected.
 extern bool check_for_23_3_data();
 extern bool check_for_24_1_data();
+extern bool check_for_25_0_data();
 
 #define WING_PLAYER_BASE	0x80000  // used by Fred to tell ship_index in a wing points to a player
 

fred2/missionsave.cpp

@@ -3158,6 +3158,15 @@ void CFred_mission_save::save_mission_internal(const char *pathname)
 	// Additional incremental version update for some features
 	auto version_23_3 = gameversion::version(23, 3);
 	auto version_24_1 = gameversion::version(24, 1);
+	auto version_25_0 = gameversion::version(25, 0);
+	if (MISSION_VERSION >= version_25_0)
+	{
+		Warning(LOCATION, "Notify an SCP coder: now that the required mission version is at least 25.0, the check_for_25_0_data(), the check_for_24_1_data() and check_for_23_3_data() code can be removed");
+	}
+	else if (check_for_25_0_data())
+	{
+		The_mission.required_fso_version = version_25_0;
+	}
 	if (MISSION_VERSION >= version_24_1)
 	{
 		Warning(LOCATION, "Notify an SCP coder: now that the required mission version is at least 24.1, the check_for_24_1_data() and check_for_23_3_data() code can be removed");

qtfred/src/mission/missionsave.cpp

@@ -3067,6 +3067,15 @@ void CFred_mission_save::save_mission_internal(const char* pathname)
 	// Additional incremental version update for some features
 	auto version_23_3 = gameversion::version(23, 3);
 	auto version_24_1 = gameversion::version(24, 1);
+	auto version_25_0 = gameversion::version(25, 0);
+	if (MISSION_VERSION >= version_25_0)
+	{
+		Warning(LOCATION, "Notify an SCP coder: now that the required mission version is at least 25.0, the check_for_25_0_data(), the check_for_24_1_data() and check_for_23_3_data() code can be removed");
+	}
+	else if (check_for_25_0_data())
+	{
+		The_mission.required_fso_version = version_25_0;
+	}
 	if (MISSION_VERSION >= version_24_1)
 	{
 		Warning(LOCATION, "Notify an SCP coder: now that the required mission version is at least 24.1, the check_for_24_1_data() and check_for_23_3_data() code can be removed");