I'm super happy that I found this app ! I just said to myself some minutes ago "It would be great to create an Electron based app to edit ranges, with custom colors and export feature" and ... here it is !
Almost perfect for me.
Almost perfect; as I miss a feature: I'd need to initialize ranges by pasting Range String text (ex: ATo+, QQ+, A9s+)
Do you plan to provide typescript declarations for your web package ?
I'm considering integrating your web package, at least some components, into a larger upcoming web app