When I sometimes take a screenshot of the entire screen and draw auxiliary lines to help model modifications by doing some rough analysis of the screenshot, I paste the screenshot into pureref and double-click the image to maximize the display. I will find that the image cannot be fully maximized. There will be some distance at the edge, which makes it impossible to match when I compare it with the original modeling through translucency, there is a slight offset between them.
I want when I maximize the image display it will actually fill the entire screen and not have some gaps between the image border and the screen border