Skins can now include a config.ini file that defines colors for different things. Here is the complete example config.ini. If one of these entries doesn't exist, the existing color is used.
The three numbers go from 0 to 255 and are the red green blue values of the color.

[skincolors2]
buttonselcolor=0 0 0
buttonunselcolor=0 0 0
chatentrybgcolor=0 0 0
chatentrybordercolor=0 0 0
listboxbordercolor=0 0 0
listboxfocusedbordercolor=0 0 0
textlistboxselcolor=0 0 0
textlistboxunfocusedselcolor=0 0 0
textlistboxbgcolor=0 0 0
buttondisabledcolor=0 0 0
defaulttextcolor=0 0 0
defaultedittextcolor=0 255 0
profitgaintextcolor=0 64 0
profitlosstextcolor=64 0 0
profitnonetextcolor=64 64 64
newsimportanttextcolor=0 0 0
newsinprogresstextcolor=0 0 0
newsnewposttextcolor=0 0 0
newsoldposttextcolor=0 0 255
lowgridusagetextcolor=0 0 0
cannothaveshiptextcolor=0 0 0
shipbuycannotaffordcredittextcolor=0 0 0
shipbuycannotaffordcrystaltextcolor=0 0 0

[listcolors2]
alpha = 128
selectedalpha = 255
even=255 0 0
odd=0 255 0
selected=0 0 255
cannotaffordeven=0 0 0
cannotaffordodd=0 0 0
cannotaffordselected=0 0 0
buysellnormalitemtextcolor=0 0 0
buysellnewitemtextcolor=0 0 0
buysellcannothaveitemtextcolor=0 0 0
buysellcannotafforditemtextcolor=0 0 0
buysellcannothaveafforditemtextcolor=0 0 0
buyselliaprequireditemtextcolor=0 0 0

[hudcolors2]
locationtext=0 0 0
distancetext=0 0 0
alignmenttext=0 0 0
nfztext=0 0 0
speedtext=0 0 0
turbospeedtext=0 0 0
flightassisttext=0 0 0
energytext=0 0 0
autoaimtext=0 0 0
leftradartext=0 0 0
rightradartext=0 0 0
notificationtext=0 0 0
helptext=0 0 0
hitbydamagetext=0 0 0
hitbyhealtext=0 0 0
targettitletext=0 0 0
targetvaluetext=0 0 0
selfvaluetext=0 0 0
groupownertext=0 0 0
groupmembertext=0 0 0
iconquantitytext=0 0 0
licensewatchtext=0 0 0
licensewatchbar=0 0 0

Ohh this is why my FlamboyanceHUD plugin broke. I'll look into doing it this way.

I'll have to play around with this, neat!