Better feedback via alerts/icons/tooltips

[narc0tiq]

Currently it's perfectly simple to explain why an ore site is above the fold or not: it either has less than 10% ore remaining, or it doesn't. With #11, however, more conditions for prioritizing sites will appear, and it becomes important to tell what's causing a site to show in the minimized listing.

• coloring (as per Colorize ore-per-minute based on its value, not the percentage remaining #12, Colorize ETD based on its value, not on site remaining percentage #13) can help to clarify at a glance, but some conditions are too opaque for this
• an alert window could show textual feedback along the lines of "Warning: site NE 123 is below 10% ore remaining" or "Warning: site S 2401 estimates only 10 minutes until depletion!"
  • alerts could also have dismissal buttons, including one which could also trigger the site to stop showing above the fold based on the ignored warning condition
• a set of icons can be shown alongside the site... name? to highlight unusual conditions (was mining but now is idle, etc.)
• tooltips might be possible for these icons, to describe them briefly to players that don't know (or don't remember) what they mean

[narc0tiq]

If we end up adding multiple warning sources, as per #11, then yes, we need status icons.

We actually have a status icon right now (after many years!) showing whether the site is currently actively mining or not (when it's not, the displayed depletion rate and friends are values based on the site's lifetime rather than the immediate status).

The icons should be accompanied by a tooltip explaining what the icon(s) are and why they're there (e.g. "amount remaining less than 10%" or "site is not actively mining"). Yes, of course a site can have multiple statuses ("is actively mining, amount < 10%, ETD < 24h")

[narc0tiq]

We can probably even (optionally) tie into the Factorio alert system to throw alerts for extreme cases like "site is empty".