Looking for advice rather than someone to do it for me. I want to use this image as a dual monitor wallpaper but as you can see the ratio doesn't really fit all the way, are their any programs I can use to generate more of the simple background on the side or am I gonna have to do that shit by hand.
https://www.pixiv.net/en/artworks/87009707 and full res if anybody wants it for themself.
