Cutoms page backgound color error

[Satsuki]

Hello,

i've donne an installer witch is all black with white text and some control.
i also use a lot of custom section.

but i have a strange bug, when a am on a non custom page (mui page) and go back to previews page, the backgound ins't black anymore, it revert back to the nsis default color.
same bug when a have a custom page right after a mui page, the background is nsis default color and not blakc.
i'm not sure to be well understand (my crap english) so here's and exemple:

PHP Code:

...
Page custom CustomPagesimple
Page custom simpleinstallselect
!define MUI_PAGE_CUSTOMFUNCTION_SHOW "CompShowProc"
!insertmacro MUI_PAGE_COMPONENTS
Page custom CustomPageavance1
Page custom CustomPageavance2
... 


the first time "CustomPagesimple" is displayed it's all black with white text.
if i go to "CustomPagesimple" from "simpleinstallselect" (MUI button) there's no bug.
if i go to "simpleinstallselect" from MUI_PAGE_COMPONENTS the back is nsis default color and not black.
if i go to "CustomPageavance1" from MUI_PAGE_COMPONENTS the back is nsis default color and not black.
if i go to CustomPageavance2 from CustomPageavance1 it's all black with white text (no bug again).

in all those section i use the following command to make the background black:

PHP Code:

FindWindow $R0 "#32770" "" $HWNDPARENT
SetCtlColors $R0 FFFFFF 000000 


if someone as any idea to make the backuground black on all page in one command, or where is the bug, thanks.

++