If your Casita
has wobbly push button latches and looks "off" when open or closed, you can buy 13 mm rosette bezels to stabilize the button and trim up the gap when open or locked. I've found two sources with reasonably priced Hafele parts so you can do the whole camper for $25 or so. You can also buy new latches and buttons here at similarly great prices. Part numbers and supplier web addresses are in the attached image.
Yes, I know there are other sources, but compare the prices.