SetDesktopColor
void SetDesktopColor(rgb_color color,
void SetDesktopColor(rgb_color color,
void SetDesktopColor(rgb_color, uint32, bool);
fScreen->SetDesktopColor(color, B_CURRENT_WORKSPACE_INDEX, stick);
fScreen->SetDesktopColor(color, workspace, stick);
screen.SetDesktopColor(desktopColor);
BScreen(this).SetDesktopColor(*color);
BScreen().SetDesktopColor(fPicker->ValueAsColor(), i, true);
BScreen().SetDesktopColor(fPicker->ValueAsColor(), true);