i did notice "C" key is handy when logs got increased but didn't notice the differences of Highlight and Narrative (log font size) options' change that much. as to smallest font of Narrative, its hard to read on my 24' monitor. so i can't set it to smallest anyway.
currently im busy on exploring literally step by step.
looking at each objects, searching NPCs to get more infos, checking tiles one by one in dangerous looking place... and so on.
it might sound tedious for non-players but actually, thanks to rich variety of environment, its really fun.
it makes me feel as if the world is emerging gradually from darkness with my own foot prints increasing. this kind of experience is rare these days. :)
i myself, ain't an artist, but i think i might have some kind of such sense through my experience since 8bit era.
old games had only a few colors at the same time on screen and had to use dither or patterned way especially for tile based game.
and there had been already some tricks to put multiple tiles in one grid with transparency. actual result isn't changed since then.
so i know possibilities from the fact how overstuffed/mismatched colors/odd placing of pixels could reduce visibility badly.