There is an updated pull request by bra1nwave against master on the void-packages repository

https://github.com/bra1nwave/void-packages opentoonz
https://github.com/void-linux/void-packages/pull/14100

New package: opentoonz-1.3.0
closes https://github.com/void-linux/void-packages/issues/14038

A patch file from https://github.com/void-linux/void-packages/pull/14100.patch is attached