The way, I know of anyway, is to set the options using the .cfg file.
The pound (#) tells Rockbox not to read those lines when executing the file. Those goofy values in front of the color options are called HTML or Hex values. I get them by double clicking the color on the Material Palettes in Paint Shop Pro. I don't know how to get them anyway else.
#selector type: pointer
#selector type: bar (inverse)
#selector type: bar (color)
selector type: bar (gradient)
line selector start color: c83a57
line selector end color: 4c0c16
line selector text color: FFCF89
selector type: pointer- Makes the selector type the pointer, cannot be altered by the other color options, only
foreground color affects it.
selector type: bar (inverse)- Makes the selector type the bar, cannot be altered by the other color options, only
foreground color affects it.
selector type: bar (color)- Makes the selector type a solid colored bar, is altered by the
start color and
text color.
selector type: bar (gradient)- Makes the selector type a gradient colored bar, uses all the color options.
start color is the top color of the bar,
end color is the bottom color.