[Windows Mobile Themes] PJonDevelopment:
I've updated the wiki page with my discoveries of all the 40 color items in the SHColor registry.

I was only able to find those due to a Russian site that copied the information from MSDN. The MSDN information, I don't know the reason, is no longer available.

So, with no further ado, here they are:

Color# Description

0 COLOR_ALERT
Obsolete.

1 COLOR_ACCENTTEXT
Obsolete.

2 COLOR_CALOFFHOURS
Obsolete.

3 COLOR_CALONHOURS
Obsolete.

4 COLOR_TODAYTEXT
Today screen text color.

5 COLOR_STARTICONBACKGROUND
Base color for title bar and soft keys
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

6 COLOR_TODAYSEPARATOR
Today screen separator line color.

7 COLOR_TODAYMENU
Today screen menubar background color.

8 COLOR_NAVBAR
Color of title bar
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

9 COLOR_NAVBARTEXT
Color of title bar text on
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

10 COLOR_NAVBARHILITE
Obsolete.

11 COLOR_NOTIFTRAY
Notification tray background color
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

12 COLOR_NOTIFTRAYHILITE
Background of highlighted icon in the notification tray
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

13 COLOR_BUBBLECAPTION
Left color of bubble caption background gradient on
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

14 COLOR_GRADIENTBUBBLECAPTION
Right color of bubble caption background gradient
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

15 COLOR_INTGRADLEFT
Left color of a gradient listview background, for the interlaced rows.

16 COLOR_INTGRADRIGHT
Right color of a gradient listview background, for the interlaced rows.

17 COLOR_HIGHGRADLEFT
Currently not used.

18 COLOR_HIGHGRADRIGHT
Currently not used.

19 COLOR_PHONEDIALERTEXT
Text color of the text in the Phone dialpad buttons.

20 COLOR_TRAYGRADLEFT
Base color for title bar and soft keys
Obs.:Windows Mobile 6 Standard only.

21 COLOR_TRAYGRADRIGHT
Right color of tray
Obs.:Windows Mobile 6 Standard only.

22 COLOR_TRAYTEXT
Tray text color
Obs.:Windows Mobile 6 Standard only.

23 COLOR_TRAYBKGND
Tray background color, if not a gradient
Obs.:Windows Mobile 6 Standard only.

24 COLOR_DIALPADBKGND
Currently not used.

25 COLOR_CRITGRADLEFT
Left color of a critical bubble caption gradient
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

26 COLOR_CRITGRADRIGHT
Right color of a critical bubble caption gradient
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

27 COLOR_BUBBLETITLE
Text color of a bubble caption
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

28 COLOR_CRITBUBBLETITLE
Text color of a critical bubble caption
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

29 COLOR_ALERTTITLE
Alert title text color. An alert is a full screen message box
Obs.:Windows Mobile 6 Standard only.

30 COLOR_ALERTWINDOW
Background color of a listview in alert. Also used for volume alert slider bar
Obs.:Windows Mobile 6 Standard only.

31 COLOR_ALERTRULE
Color of alert horizontal separator line. An alert is a full screen message box
Obs.:Windows Mobile 6 Standard only.

32 COLOR_HOMETEXT
Home Screen text
Obs.:Windows Mobile 6 Standard only.

33 COLOR_HOMERULE
Home Screen horizontal separator line
Obs.:Windows Mobile 6 Standard only.

34 COLOR_HOMEHIGHLIGHT
Home Screen background color of highlighted text
Obs.:Windows Mobile 6 Standard only.

35 COLOR_HOMEHIGHLIGHTTEXT
Home Screen highlighted text
Obs.:Windows Mobile 6 Standard only.

36 COLOR_GRADLEFT
Left color of a gradient listview background, used to draw alternating lines together with COLOR_INTGRADLEFT and COLOR_INTGRADRIGHT.

37 COLOR_GRADRIGHT
Right color of a gradient listview background, used to draw alternating lines together with COLOR_INTGRADLEFT and COLOR_INTGRADRIGHT.

38 COLOR_STARTMENU
Start Menu background color when there is no background bitmap
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.

39 COLOR_STARTMENUTEXT
Start Menu text.

40 COLOR_TAPANDHOLD
Tap and Hold
Obs.:Windows Mobile 6 Professional and Windows Mobile 6 Classic.