Which .NET framework version is it? for UI

[pourkascheff]

I'm using an Australian-based Altium designer software for printed circuit boards designing. I noticed the newer versions follow a modern way of UI which you may see in other programs as well.

The question is what do they use? For Adobe Photoshop for instance, I heard they wrote their own controls in C++ which in any platforms (Including Windows XP and Windows 7) despite you do not have darkmode, controls and app theme is all dark. Similar took place for Steinberg Cubase 12 which all controls, literally ALL controls have a sort of skin which belongs to cubase. How do they does this? Is it WindowsForm or WPF or something else?

- Do not forget that main idea is still Altium designer which I guess it is a Winform sort of application with upgraded Visual studio version or using a higher .NET framework. According to the Microsoft, newer frameworks are beta and are not supported for all platforms.

For more information here's a screenshot:


1) Some sort of pin-able toolwindow with animated in opening and closing in their tabs.
2) Some kind of collapsible groupboxes I guess? Which are great idea oh god I admire its programming team.
3) Good system-style looking radio buttons.
4) TreeView with small triangular button instead of +/- symbols with a built-in search.