Eclipse is also a disaster internally though, it's not CADT but it's extreme loose coupling, everything setting observers on everything else and keeping its own mirror copy of the data up to date with no idea of the context they'll run in, and if the updates arrive out of order you get state desyncs, and sometimes you get deadlocks because nobody really knows what's calling what, so you can't have a lock hierarchy.
Bottom? Just the fact that there is that first selector button is a huge spoiler. Not to mention the title that briefly appears before fading out. Not going to be more specific than this to not ruin the show for people who haven't seen it yet.
> The result looks quite bad on Windows and Linux.
GTK4 doesn't even support subpixel rendering any more, and with OLED market share increasing I'd anticipate Windows moving away from it at some point too.
From personal experience, I strongly disagree with the negative comments saying Forth isn't suitable for teaching children.
"Starting Forth" by Leo Brodie was the first programming book I ever read when I was about 6 or 7 years old, after my dad brought it home from work (where they used Forth). To me, the language felt very intuitive and easy to grasp. And Brodie's illustrations helped a lot with visualizing how it all worked.