@9c97e872 not super related to the work you're doing but ... fixed a performance regression today that involved the introduction of a GtkColorSelectionDialog to every one of a highly repeated object type. The dialog was never shown; at the code level you have to understand that creating such objects is still expensive. Slowed down adding new tracks to Ardour by about a factor of 3-4. Now it's just a pointer and lazily constructed. Obvious ... but not in the right way :)