I find a need for a draw_focus() method that takes an Fl_Color as an argument.
There are cases where the background color of the focus box is not the widget's
color().
One such case is Fl_Tree, where items can each have a different background color
(eg. the selection color)
Unless I'm missing something, Fl::draw_focus() as it stands only assumes
the widget's color().
I'd like to suggest a second call that has the color as an option,
an the current call be a wrapper for the new call, eg:
// NEW METHOD
void Fl_Widget::draw_focus(.. Fl_Color C, ..) {
..
}
// CURRENT METHOD
void Fl_Widget::draw_focus(..) {
draw_focus(.. color(), ..);
}
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