GtkScintilla::marker_set_fore

void marker_set_fore(int marker_number, int fore);

Set the Fore color of a marker, for markers table, see marker_define()

// defining fore color of marker 1...
$scintilla->marker_set_fore(1, hexdec('FF0000'));

// defining fore color of marker 2...
$scintilla->marker_set_fore(1, hexdec('00FF00'));