There is a new pull request by streaksu against master on the void-packages repository

https://github.com/streaksu/void-packages master
https://github.com/void-linux/void-packages/pull/18361

mate-panel: update to 1.23.2
Also put myself as contributor.

A patch file from https://github.com/void-linux/void-packages/pull/18361.patch is attached