Window only goes to 90%

[jidanni]

Here the QR code takes up all the screen. It is a pity because your little window is only 90% of the screen and there's no way I can fix the barcode inside it. (I'm sorry I had to make it look murky to protect the identity.)

Okay, in some situations the user could squeeze the image to make it fit the tiny window. But still why not allow the window to get bigger to fit the image?