BCGControlBar Pro for MFC
void CBCGPRibbonPaletteButton::EnableAutoLightIcons ( BOOL  bEnable = TRUE)

Enables or disables the gallery icons colors lighting in the dark themes.

Call this method to specify whether the gallery icons colors will automatically changed when any dark visual theme is active. You have to call CBCGPRibbonBar::SetImagesLuminosityInDarkThemes tp specify the icons lighting algorithm (changing luminocity, inverting or simplifying).

Parameters
bEnableTrue to enable, false to disable.