This is a part of what I have for my Diamond's Task Manager (looks like ManilaCustomHlDown/Up are the colours):
Code:
[HKEY_CURRENT_USER\Software\HTC\TaskManager]
"LauncherUp"=hex:\
20,00,00,00,01,00,00,00,0A,00,00,00,A0,00,00,00,02,00,00,00,04,00,00,00,1E,\
00,00,00,1C,00,00,00,02,00,00,00,04,00,00,00,16,00,00,00,08,00,00,00,02,00,\
00,00,0C,00,00,00,16,00,00,00,10,00,00,00,02,00,00,00,14,00,00,00,0C,00,00,\
00,16,00,00,00,16,00,00,00,14,00,00,00,18,00,00,00,15,00,00,00,15,00,00,00,\
15,00,00,00,19,00,00,00,16,00,00,00,14,00,00,00,16,00,00,00,1A,00,00,00,17,\
00,00,00,13,00,00,00,17,00,00,00,1B,00,00,00,18,00,00,00,12,00,00,00,18,00,\
00,00,1C,00,00,00,19,00,00,00,11,00,00,00,19,00,00,00,1D,00,00,00,1A,00,00,\
00,10,00,00,00,1A,00,00,00,1E,00,00,00,1C,00,00,00
"LauncherDown"=hex:\
20,00,00,00,01,00,00,00,0A,00,00,00,A0,00,00,00,02,00,00,00,04,00,00,00,1E,\
00,00,00,1C,00,00,00,02,00,00,00,04,00,00,00,16,00,00,00,08,00,00,00,02,00,\
00,00,0C,00,00,00,16,00,00,00,10,00,00,00,02,00,00,00,14,00,00,00,0C,00,00,\
00,16,00,00,00,10,00,00,00,14,00,00,00,1E,00,00,00,16,00,00,00,11,00,00,00,\
16,00,00,00,1D,00,00,00,17,00,00,00,12,00,00,00,17,00,00,00,1C,00,00,00,18,\
00,00,00,13,00,00,00,18,00,00,00,1B,00,00,00,19,00,00,00,14,00,00,00,19,00,\
00,00,1A,00,00,00,1A,00,00,00,15,00,00,00,1A,00,00,00,19,00,00,00,1B,00,00,\
00,16,00,00,00,1B,00,00,00,18,00,00,00,1C,00,00,00
"ManilaCustomHlDown"=dword:00ababab
"ManilaCustomHlUp"=dword:00ababab
"SortByMemoryUsage"=dword:00000000
"Enable"=dword:00000001
"EnableTapAndHold"=dword:00000000
"EnableTodayX"=dword:00000001
"WaitTime"=dword:00001B58
"DropDown"=dword:00000001
"LargeIconSize"=dword:00000040
"EnableQmenu"=dword:00000001
"EnableLargeIcon"=dword:00000001
"EnableAutoKill"=dword:00000001
"MemoryThreshold"=dword:00900000
EDIT: I also read that setting ManilaCustomText = 0x00ffffff will change the font colour, but that didn't work when I tried it.