Theme is here: http://tster123.github.io/
To actually see anything you will have to apply it though since nothing is different in the test page yet.
Baseline:
The classic black theme
Improvements:
1) Remove the paragraphs of text (i.e. "Knight tster123, you require a military presence...")
1b) note that links to advisors which appear in the paragraphs are still present
2) your province in the kingdom page is colored green (bold is too hard to see)
You might notice some empty space where the paragraphs used to be. Because I am limited to CSS fixes, in order to keep the links to the advisors present I can't hide the paragraphs completely, so they still take up some space even though you won't be able to see them.