Not sure what you mean the colors before someone presses? All states of the buttons have colors in the video, blue is current era+not researched, violet is after current era+not researched, brown is before current era+not researched. Green is current research, yellow is intermediate queued research and orange is research target.
However once the era icons are back in there will be zero confusion about what era you are looking at, it will say right there, no need to guess as to what some colors mean.
Further things I want to do:
- Add decoration to show current research and target (not just color but a marker of some kind)
- Add clearer queue position display (a circle that appears in the top left corner showing queue position)
- Era specific decorations for finished techs, DrD_AVEL is going to make some. Might be difficult to make these look good though, has to be subtle.