Disabling/resizing bitmaps/images in menus

In V7 & V8, how do you disable bitmaps/images in menus for custom items?

In V8, how do you resize the images? My V7 .rui now displays as shown below when opened in V8. Before 8.7 or 8.8, I believe the images were the same size as in V7.

7.37.24107.15001, 2024-04-16

8.8.24170.13001, 2024-06-18