I am saving the images as 600x250px png files, just as the default. However, non-rectangular boxes are deformed strangely at the corners. I have looked, and I haven't been able to find information on this issue at all. I don't recall editing any of the code dealing with the confirm prompt in my screens.rpy file, but I suppose it's not impossible that I did something to cause this.
My assumption is that this is happening because the game is trying to stretch the image weirdly (even the regular rectangle appears to have thicker colored corners than intended). If that is the case, can I force the image to be stretched by the horizontal and vertical axes?
As seen below, the issue doesn't seem to be with transparency as it also happens when I make the entire image opaque!
examples:
Thank you for any assistance that can be offered!