In the late 90s our desktops on Linux literally looked like this [1]. Of course, that seems to have become lost to history. I bet E is still themable but you have to go back to 1999 when it was super exciting.
[1] https://i.redd.it/fravza9fzie31.jpg
(In fact, it's kind of funny and sad that the state of the Linux desktop and the ambition level hasn't really changed much in 25 years)
If my memory serves my right, theming was built on-top of C preprocessor.
Sadly enlightenment broke backwards compatibility with old themes so often basically nothing works anymore. You have to search for themes specifically made for the new versions, of which there are very few.
Quite a problem since the default theme (of the prior version at least) was a mess.
E16 was the height of cool when it came out. I would have people see my desktop and wonder what the hell I was running.
Strong Kaleidoscope vibes. I love it!
> the Linux desktop and the ambition level hasn't really changed much in 25 years
I find that totally wrong. Look at niri - I can imagine MS and Apple will introduce scrollable wm features in the coming years.