UI decriptions #423
Description
The tag modes have no in-game explanation for how they work.
In general, many things in the UI are not explained. Many things are more or less self-explanatory, but pages with rows of options should have hover-descriptions or similar to clarify what things mean when needed.
Probably easiest to have an overlay with the description, which snaps up or down to avoid the cursor position. Or always down, and adjust scrolling to keep the cursor above the description boundary line.
Exit criterion: Option-setting pages have descriptive text based on the option/setting under the cursor.