In the taskbar Appearance configuration, there is a check box 
option "Colorize to match the desktop color scheme" that has effect 
when the "Enable background image" option is enabled.

On my system, when I select the default.png background image and 
then enable the colorize option, the color is always a "sky blue." 
Regardless of what I change in KControl, I can't use any color 
other than that sky blue.

I want to use the default.png background, which has a gradient 
look, but I want a darker panel.

From where is this color derived? I tried browsing the code but am 
clueless.

Thanks. :)

Darrell