how to make a 4:3 image not zoom but just put white on the left and right for a 16:9 monitor?

[autoteelar]

sorry if this is a duplicate issue i am just having trouble finding how to do this

[arcmags]

wal doesn't have a way to do this. Use wal to generate the colorscheme and apply it, then use feh to set your background how you want it.