I'm.. not seeing any difference between the files?
They both look identical no matter my image viewer, and ingame it doesn't appear to have changed anything. They're only very slightly different size in bytes.
I had tried to resort to increasing LGRAY after Meph's post (thanks; discovered this
http://kurokikaze.github.io/cinnabar/), but it brightened up other areas of the game with not too much change in visibility. Seems like by default the text color is controlled by BLACK (which shouldn't be changed?), and the background highlighting is the LGRAY. However, increasing LGRAY actually made both the normal text and highlighting brighter, which didn't make much sense..
I guess it's different with this graphic set because the font is actually its own stylized color and not white/purple, so adjusting colors can't be the solution?
Shame the game's text colors are hardcoded to be shared with the tile graphics.. would make it so easy to have custom preferences if they were split.
And as for the ramp thing; the current icon is just hard for me to see. Upon re-inspection,
it seems it's just a flat icon for a ramp indicator, it does not have a separate indication for up or down like I initially thought was there. -Edit: Turns out multilevel is effectively removing the slightly different visible effect for "down ramp", turning it into an empty hole. - That's kind of the problem; I have to check what direction it's going. Add onto that the fact that some tiles are very dark (ex. obsidian) and it's just pretty hard to even see that it's a ramp indicator. Maybe I'll start to get used to it after extended play, but right now it's a problem for me (especially after watching so many LPs and tutorials where everyone has clear triangle indicators).
Personally, I think I'll have to brighten up everything by ~20% to cope with my monitor calibration (black is actually black; not dark grey like most people), just because this tileset is quite a dark one.
Edit: Did take some sample images to showcase the problem for other people:
Text highlight:
http://i.imgur.com/u1s78gk.png (I didn't even notice I was highlighting somebody for many hours of my first play session; thought it was a top border)
Ramps and dark text on main UI:
http://i.imgur.com/1jar1JU.png (the ramps just look like pitch black boxes on my screen)