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Hell freezes over, MS Paint adds support for layers and PNG transparency
(arstechnica.com)
This is a most excellent place for technology news and articles.
The developer of paint.net sells it on the Microsoft store to support the product. Not any different than buying an app through the App Store or Google play store.
It’s created by a Microsoft Engineer, not super surprising they leverage Microsoft tools to get paid.
TIL. Thanks for the info - I'll update my post.