Today we are announcing the retirement of the Visual Studio for Mac IDE. Visual Studio for Mac 17.6 will continue to be supported for another 12 months, until August 31st, 2024, with servicing updates for security issues and updated platforms from Apple.
GTK has improved a lot, but native theming isn’t the area. It has very powerful theming but I don’t think a macOS theme exists.
Thanks. I’m very out of date with it.