legacy/gsm_color_button: Fix arg type mismatch
Both gtk_color_chooser_get_rgba()
and gsm_color_button_set_color()
take a pointer to GdkRGBA
, that is, GdkRGBA *
, and not GdbRGBA **
.
Fixes #267 (closed)
Fixes: 85063b9f ("legacy/gsm_color_button: Use color setter on ColorChoose OK response")