I&#x27;ve found <a href="http:&#x2F;&#x2F;www.aseprite.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.aseprite.org&#x2F;</a> to be a reasonable alternative to DPaint. The UI is quite different, but on the other hand it has lots of more &quot;modern&quot; features, like layers. Source code available under GPLv2, but you can also buy binaries.