There’s also something really weird going on with the window. When I have your application open and I hit ⌘Q to quit, it minimises. Bringing it back to the foreground doesn’t have a menu bar; the Finder menu bar is visible. Then after a while, the window goes away but I see it’s in the menubar. Don’t play silly games like this please.
When I chose to download the Mac universal build from your website using Safari, a new blank tab opened and nothing happened. I closed the tab, returned to the original page, and saw a permission prompt asking to download from your website.
The manual download version does have the `static_themes` directory.
For what it’s worth, I don’t like downloading DMGs manually. In order of preference: Mac App Store Homebrew manual download.