-First question, I recently stumbled on a way to create a custom JPanel(image) and custom JButtons(own images) and paint them to a JFrame which holds a game board for painting 2dgraphics. Is this an ok way to have a UI the custom JPanel with my Custom Buttons on it?
Hello, your described way is called custom painting (overriding components pain or paintcomponent methods) and is common way to make GUI with image as background. You just need to make custom painting to component you want and then add that component to (in your way) JFrame and it will show it. Unless you set layout to null you shouldn't notice any weird behaviour.