For those that are used to use ux-theming instead of Calypso, I have made two updates: - ux-theming has been updated to 1.7.0 with updated dependencies. I have decided to remove Grunt, as this wasn’t used by anyone. - I have created an installer for it, so you don’t have to manually copy a zip-file to your project: Just simply use your CMD/Powershell to go to the folder and run ‘npx install-ux-theming’. It will also apply the folder fix for MX8 if needed. No more errors, no more manual steps. Further reading can be found here: https://github.com/JelteMX/install-ux-theming