If you open the .theme in notepad is there a section named [Control Panel\Colors] ?
If so make sure your colors there are the same as the colors you changed in WSB because these will over-ride your changes depending on how you apply your theme
You really don't need this section in your .theme file as long as you have WSB anyway.
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Yes i'm using wsb 1.5.4.4. I'm sure i did all font colors correct. 'cause when i'm testing the theme on wsb, it looks like what i want (font color) but when i restart my pc, it turns the grey to black.
I can't see [Control Panel\Colors]
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[Theme]
DisplayName=chromium test
SetLogonBackground=0
[CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\DefaultIcon]
DefaultValue=%SystemRoot%\System32\imageres.dll,-109
[CLSID\{59031A47-3F72-44A7-89C5-5595FE6B30EE}\DefaultIcon]
DefaultValue=%SystemRoot%\System32\imageres.dll,-123
[CLSID\{F02C1A0D-BE21-4350-88B0-7367FC96EF3C}\DefaultIcon]
DefaultValue=%SystemRoot%\System32\imageres.dll,-25
[CLSID\{645FF040-5081-101B-9F08-00AA002F954E}\DefaultIcon]
Full=%SystemRoot%\System32\imageres.dll,-54
Empty=%SystemRoot%\System32\imageres.dll,-55
[Control Panel\Cursors]
AppStarting=%SystemRoot%\cursors\aero_working.ani
Arrow=%SystemRoot%\cursors\aero_arrow.cur
Crosshair=
Hand=%SystemRoot%\cursors\aero_link.cur
Help=%SystemRoot%\cursors\aero_helpsel.cur
IBeam=
No=%SystemRoot%\cursors\aero_unavail.cur
NWPen=%SystemRoot%\cursors\aero_pen.cur
SizeAll=%SystemRoot%\cursors\aero_move.cur
SizeNESW=%SystemRoot%\cursors\aero_nesw.cur
SizeNS=%SystemRoot%\cursors\aero_ns.cur
SizeNWSE=%SystemRoot%\cursors\aero_nwse.cur
SizeWE=%SystemRoot%\cursors\aero_ew.cur
UpArrow=%SystemRoot%\cursors\aero_up.cur
Wait=%SystemRoot%\cursors\aero_busy.ani
DefaultValue=Windows Aero
DefaultValue.MUI=@main.cpl,-1020
[Control Panel\Desktop]
Wallpaper=C:\Windows\Resources\Themes\chromium test\1.jpg
TileWallpaper=0
WallpaperStyle=10
Pattern=
[VisualStyles]
Path=C:\Windows\Resources\Themes\chromium test\chromium test.msstyles
ColorStyle=NormalColor
Size=NormalSize
Transparency=1
AutoColorization=1
[boot]
SCRNSAVE.EXE=
[MasterThemeSelector]
MTSM=RJSPBS
[Sounds]
SchemeName=@%SystemRoot%\System32\mmres.dll,-800