There's a closed pull request on the void-packages repository

i3lock-color: update to 2.12.c.5
https://github.com/void-linux/void-packages/pull/24133

Description:
Updates `i3lock-color` to allow for 4-byte rgba colors and more features.

The maintainer of i3lock-color has also been changed to Raymo111, so the appropriate change has been reflected in the revised template file.

(Disclaimer: I'm still a little new to xbps templates, gently let me know if I did something wrong :))