Im currently using Yanflys Engine Ace for my new project. I've set the screen resolution to 640x416 and my images aren't using the whole space, but are missing a part on the left and right side of the screen, even though they have the right resolution. Is there a way to solve that issue?
Naturally, your pictures will have to be the same size as your new game screen. Your Game Over, Title, and any pictures that you plan to cover the whole screen with will have to be the new size 640x416.
Your max resolution is 640x480. So upload the pics based on that... If you want full screen, go to your GPU setting's and force full screen. You can tick the 'ignore aspect ratio' it's up to you... Monitors now a day's have built in scaling options as well. But I recommend using your GPU.