At the top of gen_ex.bmp there is a row of pixels that are used to color the 
library background parts. Starting from the left pixel they color this:

 (1) Background (main color)
 (2) Text (all main text)
 (3) Frame around background
 (4) Button text
 (5) Frame text
 (6) Lines on frame
 (7) Selection of playlist things
 (8) Header background
 (9) Header text
(10) Line around header (top and left)
(11) Line around header (bottom and right)
(12) Header when pressed
(13) Header dead area
(14) Scrollbar first color
(15) Scrollbar second color
(16) Scrollbar pressed first color
(17) Scrollbar pressed second color
(18) Bottom right corner dead area