More boring UI stuff:
Not much difference visually except icon tint and different border, but in reality there are some major changes
- icon border color is controlled by Lemur style
- icon color is controlled by Lemur style (as in default shader - just multiplying it)
- icon tint is controlled by Lemur style and is applied by custom shader (glsl mix, using tint color alpha)
- button have multiple associated entries in Lemur style that could by applied with single command (kind of - for now I just replace element id for button with one taken from enum and force style update)
Icon and border placeholders are from Starcraft 2 again.
Icon border texture now is controlled by Lemur style as well, and last time I forgot to recolor border so here is one too