color-themes.com according to it’s description, offers “Color themes for IntelliJ IDEA, Webstorm, PyCharm, RubyMine, PhpStorm and AppCode”
However, it turns out that these themes also work with Rider.
After downloading it (it’s a .jar file) go to File > Import Settings
Choose the downloaded .jar file, and it will import the colour theme.
Once Rider restarts, the theme will be available, and your editor will have switched to that theme
Unlike Visual Studio, there’s actually two places the colours are configured.
One, is Appearance > Theme:
This governs how the application looks (not how your fonts look)
Light, or Dark (Darcula)
To change the font colours / style, you’ll need to go to Editor > Colors & Fonts > Font
You can then select the Scheme
Notice ‘Solarized Dark’ is now in that list
My preference, however, is the Visual Studio Dark theme (coming from a Windows VS background!)