SetForegroundColor
return SetForegroundColor((rgb_color){ r, g, b, a });
CharacterStyleDataRef data = fStyleData->SetForegroundColor(which);
CharacterStyleDataRef data = fStyleData->SetForegroundColor(color);
bool SetForegroundColor(
bool SetForegroundColor(color_which which);
bool SetForegroundColor(rgb_color color);
CharacterStyleDataRef SetForegroundColor(color_which which);
CharacterStyleDataRef SetForegroundColor(rgb_color color);
linkStyle.SetForegroundColor(ui_color(B_LINK_TEXT_COLOR));
regularStyle.SetForegroundColor(HighUIColor());
disabledStyle.SetForegroundColor(disabled);