I have read that a couple hours after writing my comment, I was a bit frustrated but it made me want to remake that game myself in an engine like Unity where you can use “UXML”, quite close to HTML on the syntax, to design vectorial UIs, and unlike my other game projects it doesn’t require me to be an artist to make the game :p
Thanks for your work, it was infinitely inspiring, hope your next projects will be as fun as this one !