I got tired of reading the pinkish /lit/ and straining my eyes constantly, so I wrote a quick and dirty css to make it more readable.
It makes the text only occupy the middle of the screen (50% of width, should be okay for widescreen resolutions) and changes the color scheme to black text on white bg.
It's ugly as hell, but it works.
You can use something like *Stylebot* on Chrome or *Stylish* on Firefox to apply it to /lit/ only.
Feel free to give feedback and/or make improvements.