This comes straight from Waller’s own GitHub page, and it’s free. Need help installing?
About this app
Waller generates smooth colour-gradient wallpapers you can tweak and set straight away, with no downloads, no image packs.
It is tiny, offline and free.
From the app’s home page
- See the codeHow it’s made, every line is public
- Questions & commentsTalk with the people who make it
- Report a problemTell the makers something is broken
- All versionsOlder downloads and what changed
- LicenseThe rules for using and sharing it
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