ReadOnlyTint
SetViewUIColor(B_DOCUMENT_BACKGROUND_COLOR, ReadOnlyTint(B_DOCUMENT_BACKGROUND_COLOR));
float readOnlyTint = ReadOnlyTint(B_DOCUMENT_BACKGROUND_COLOR);
offscreenView->SetLowUIColor(LowUIColor(), ReadOnlyTint(LowUIColor()));
offscreenView->SetLowUIColor(LowUIColor(), ReadOnlyTint(LowUIColor()));
SetViewUIColor(B_DOCUMENT_BACKGROUND_COLOR, ReadOnlyTint(B_DOCUMENT_BACKGROUND_COLOR));
float readOnlyTint = ReadOnlyTint(B_DOCUMENT_BACKGROUND_COLOR);
view->SelectedVolumeIsReadOnly() ? ReadOnlyTint(backColor) : B_NO_TINT);
view->SetLowUIColor(view->LowUIColor(), ReadOnlyTint(view->LowUIColor()));
return ReadOnlyTint(ui_color(base));
float ReadOnlyTint(rgb_color base);
float ReadOnlyTint(color_which base);