Adds an optional additional foreground color option to a bar: fg_full = <color>
A value of 0 represents the fg-color, and a value of 100 (a full graph) the
fg_full-color.
Example:
progressbar xy
{
bar { fg = "#111155" fg_full = "#3333cc" bg = "#000000" bordercolor = "#4444cc"}
....
}
Signed-off-by: Julien Danjou <julien@danjou.info>