Did we solve your search? If "krn.png" turned out to be a specific brush from a Patreon artist named "Kuren," please check your download folder for the accompanying README file. Otherwise, follow the Krita guide above to convert any PNG into your new favorite tool.
You can access official brushes and support the artist through these platforms: Buy Me a Coffee : The primary hub for KRN.png’s Shop , featuring both free and paid brush sets. Social Media krn.png brush