Nitpick: Aseprite is source-available, not open source by the Open Source Initiative's definition. From the Aseprite EULA [1]:
> (g) Source code.
> You may only compile and modify the source code of the SOFTWARE PRODUCT for your own personal purpose or to propose a contribution to the SOFTWARE PRODUCT.
The OSI's definition of open source [2] permits distribution of unmodified and modified copies (with the exception of lone, unmodified copies; I read somewhere that adding a hello world program is a workaround):
> 1. Free Redistribution
> The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.
...
> 3. Derived Works
> The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.
"free software" is ambiguous to English speakers/writers, but "open source" is ambiguous in its own way.
By the way, there is a "Fork of the last GPLv2 commit of Aseprite" called Libresprite [3].
> (g) Source code.
> You may only compile and modify the source code of the SOFTWARE PRODUCT for your own personal purpose or to propose a contribution to the SOFTWARE PRODUCT.
The OSI's definition of open source [2] permits distribution of unmodified and modified copies (with the exception of lone, unmodified copies; I read somewhere that adding a hello world program is a workaround):
> 1. Free Redistribution
> The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.
...
> 3. Derived Works
> The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.
"free software" is ambiguous to English speakers/writers, but "open source" is ambiguous in its own way.
By the way, there is a "Fork of the last GPLv2 commit of Aseprite" called Libresprite [3].
[1] https://github.com/aseprite/aseprite/blob/main/EULA.txt
[2] https://opensource.org/osd
[3] https://github.com/LibreSprite/LibreSprite