It's totally fine. It has a bit of mid-90s Java program vibe to it -- large chunky icons and buttons -- but functionally it's the same as any of these programs. I seriously don't need it to be upgraded to a Material UI or any hot new thing.
I think many people don't realize that its appearance is very customizable - you can turn off all the icons, buttons, extra views etc., after which it has a very plain and simple appearance.
I get that tiny icons are in these days, but my icons are less than 40x40 pixels. Is that considered large? They look the same size as the icons in Firefox.
