It seems that MakerWorld didn’t stop working during the holidays; only two days after releasing an update to “Image-to-3D”, they released a new version of Make My Sign, labeled 1.2.
With this new release, MakerWorld says:
This update introduces local font importing (including system fonts) and layer adjustment, making your designs more versatile and customizable.
If you would like to test this new version, you can follow this link: https://makerworld.com/makerlab/makeMySign