So coming into Z16, I was really prepared to change the default theme as soon as I get the core functions of the system working. At the first sight, I thought oh it looks cool but there is no contrast and I think my eyes are going to hurt. But, I decided to keep it. I found myself actually liking the Z16 theme more than Z15. I think the developers really did a good job with the color composition and the overall theming of the system. It really looks good... most of the time. There are some rough edges but they are easy to fix before the release. For example, this screen shot:

This is the default Z16 background and theme. But the Text editor is almost invisible. It hurts my eyes trying to figure out the edges of the paper icon. This happens with a bunch of other similarly colored icons as well.
I'll tag @zorink and @AZorin so that they see this issue.
Overall, I really like the Z16 theme. But what do you think about the theme in contrast to other Linux themes in general? I'd like to hear other people's thoughts on it.
On a similar note, Firefox also recently 'updated' their GUI. It is very bad example of a flat design with no contrast. When I looked on their forums and their subreddit, basically everyone collectively hated their new design and wanted them to revert to the old design.