> And not only tabs for apps like browser and IDEs, but also the desktop window manager should support tabs on top level windows in a consistent manner
I miss the tabbed window feature in KDE 4.
This is the feature I'm most disappointed to see missing from version 5.
In the middle of the article, there is a brief discussion about icons and colors.
I also think that well-coordinated color icons are good for readability and usability.
However, it is difficult to apply it universally to support a variety of colors. If it is similar to the background color, it is difficult to distinguish and there may be contrast issues depending on the light/dark theme.
I think it's just the ease of development of a solid color icon that matches the color of the text.
I'm the author of Lepton, a popular theme for Firefox.
You can see how I made various decisions from my perspective and how I improved on some of Mozilla's less-than-stellar decisions.
I think that might explain how we improved it and made it popular.
1. Since it is based on Interaction Net, is it parallelized well?
2. Will there be a borrow checker like Rust does?