Many RV refrigerators come stock with wooden panels that match the kitchen cabinets. To avoid removing the panels, you can simply paint them just like you would the cabinets.  If you do want to remove the panels, examine the fridge to see what the simplest removal process will be. Look for plastic clips around the edges of the panel. You may need a screwdriver in order to un-clip them, but then all you have to do is just slide the panel off. If space constraints mean you have to remove the whole refrigerator or freezer door to get the panel off, just look for the pins in the door’s hinges. You will likely need pliers and a wrench to get them out, but once you pull the pins, the doors will come right off (just make sure you don’t lose the pins, so you can reinstall the door).