Wallpaper/Lockscreen Minimum Resolution

[Sidneys1]

It would be awesome to have an option to enforce a minimum resolution to the automatic wallpaper/lock screen changer. I use /r/earthporn, which is awesome, but a lot of the time I'll get wallpapers that are sub-720p, which look terrible on my 1080p desktop. Maybe add a minimum resolution option with common wallpaper sizes (720p, 1070p, 4k, etc) and another with aspect ratios (4:3, widescreen, dual-monitor, etc). Wallpaper sizes/ratios don't need to be exact, but 'close'.