Frankly, you’re coming off quite hostile about what is literally a texture.

So it's acceptable for you to call me a pedant, but I'm crossing the line when I say you're being a curmudgeon? Ok.

What I’m telling you is that it’s literally a visual element. I already said, it could be optional.

It could be, but maintaining multiple designs isn't free. To keep them all involves additional QA and bugfixes for every release and designing an interface to allow a selecting different designs. There's a cost to this, and why bother? As you say it's literally a texture, not a big deal. What's your justification for a development team to put time and effort to maintain some old designs that are no longer optimal?

And this is a microcosm of all interactions with technology. Some people simply don't like change, even when there's good reason for the changes. Every technological improvement no matter how big or small comes with reactions similar to yours. It's best not to impede technological improvements to please curmudgeons, because there's no pleasing them. You can decide to be angry over every minor improvement in technology, but that's just deciding to be angry for petty reasons. It's best to try to understand technological changes rather than always being angry over them.

I mean you're still upset over a change in the look of scrollbar, even after the reasons for the changes were explained. There are much bigger changes in technology coming, not sure how you're going to handle it if a scrollbar change bothers you.