It really is. GTK can basically be used with any language, C bindings are extremely common and there are bindings for all my favorite languages, Go, Rust, C#, etc.<p>But the Windows compatibility of GTK is just horrendous. It seems to work now with the help of some people GTK 3+ can be used on Windows, but the icons sometimes don&#x27;t work, transparency never works, expander window grippy thing doesn&#x27;t look right, fonts look terrible, responsiveness is terrible, form fields look terrible and don&#x27;t function normally, the list goes on and on.