Good day, my monitor is 2560x1440, but on fullscreen there are black borders around the Picotron window. To get fullscreen without borders I have to enable stretching, which makes the image blurry.

1440p is just 720p doubled so I assumed there should be no problem scaling to that resolution, but it seems like the window itself is running at 1920x1080 in the center with black borders around it.

Is there a way to scale to cover the entire screen without making the image blurry?