@Override
            protected void result(Object object) {
                if ((boolean) object) {
                    projectData.setChangesSaved(false);
                    removeDuplicateDrawables(drawable.file);
                    removeRegionFromTenPatches(drawable);
                    gatherDrawables();
                    sortBySelectedMode();
                }
            }
Shows a dialog to confirm deletion of all TintedDrawables based on the
provided drawable data. This is called when the delete button is pressed
on a drawable in the drawable list.
@param drawable
core/src/com/ray3k/skincomposer/dialog/DialogDrawables.java