It's vector art. You can design all sorts of things. App layouts, website design, logo design, basically anything that is visual and will need to scale up and down without loss of detail.

I'm still confused

Commercial software does that too. Except there's a lot more empowering and convergence and whatnot.

For real! The only thing that matches this frustration of trying to find out wtf something is and not just "feel good" BS statements about whatever it might be is surveys. Fuck me am I going to snap one day over fucking surveys on big companies. I hate going to support pages for getting like drivers to install for a PC I am working on and knowing that before I can even press "search" I get a box in the middle of the fucking screen already asking "How'd We Do?" or "Got three minutes to let us know how well we helped you today????" I would try to just start filling them out, but I don't want to have the very fed-posting-ish words I have for them to be tied to a customer's PC.

Ignore this unless you (the persons reading this) either don't understand how fucked so many surveys are as a worker. Just thinking about how much I hate them means I needed a therapeutic rant to get it out. And I am not just going to delete it after typing it at this point. lol

And the surveys that all big companies have are rigged to begin with. They all have either numbers or stars and comment boxes. But depending on the company and situation the rating part might be tied to a specific worker that may have even been the only good part of the interaction. So giving a real "rating" only means that worker is raked over the coals and can be written up. Even if the comments part easily shows this to be the case. The big box chain I fix PCs for does this and my co-workers and myself are constantly fucked over by customers that we were told point-blank that we helped them more than anyone else. But since those customers are fuming about all the other stuff (that was completely out of our control), they give whatever the lowest rating is and the comments about us specifically being good are ignored. All because those comments parts don't really matter to high-er level managers and corporate. Can't be removed from our metrics as being clearly about something else. So it just becomes about "well it means you will need to get more positive ratings to cancel it out".

And as a customer, they use the whole "concern about wanting feedback" as 100% go ahead to just spam the ever living shit out of your txts, email, and even start harassing via calls that they force workers to make. FUCK SURVEYS so much from both a worker and customer standpoint! I volunteer to be the executioner of the people that make this shit a policy of a company (and of course the CEO, other C level folks, and every single member of their boards once the revolution comes.

Didn't really look at it, if I'm honest. Just expressing general dissatisfaction...

The linked blog post? I can't find a word about what it does in it. Only how amazing the new version is and how difficult it was to make it. You can kinda guess from the post the purpose of the app, but nothing explicitly given

WYSIWYG collaboration platform, I guess?

Heh, ligma. Nice.

There's no logic in any of that. CSS and HTML component testing is just automating the designer/dev hand off. You can't make a functional app with it. And it's not appropiate as a content editor so doesn't even rise to the WYSIWYG abilities of something like Wordpress Gutenberg full-site editing or Squarespace.