Sergey,
There's a win11 setting called "Always Show Scrollbars." If this is turned off (the default for win11 I think), the scrollbar thumbs show up when you mouse over the scrollbar. If it's on, the thumbs are always visible.
The rve scrollbars do not seem to respond to this setting and seem to always be in the mode where you have to mouse over them to show the thumbs (scroll arrows). Is there a way to get them to follow the OS setting? Not a big deal but thought I'd ask about it.
Stan