CPU-X: CPU-Z for Linux

Very nice.

On a side note, and not wanting to criticize the people that spend their time working on something like this, that UI is the main reason why I still use Windows and macOS. Light grey on a white background, dark grey on a that blue background, a black AMD logo on a dark grey background, the padding around the text inside boxes...

I feel bad saying this when it's a free tool, but it's a shame that open source projects struggle so much with UI stuff.

MacOS and specially Windows has their fair share of great and useful software with questionable UI/UX, this is far from a problem affecting only Linux.

Take a look at modern KDE and specially GNOME software, they are pretty well made regarding UI/UX best practices and GNOME even has a great HIG that they follow strictly on their stuff, you can't even say that regarding Microsoft own software anymore.