Choosing a WordPress theme from the Customizer is a bit painful.
First of all, "Search installed themes" doesn’t make sense as a string on a hosted WordPress service. As a user, I have no ability to install new themes. It could be edited to just "Search themes"
Second, as a user with a blog, I want to choose from themes that showcase my words. The first suggested theme appears to be a product portfolio, and the second suggested theme is for a restaurant website. I should be able to indicate I just want to see writing themes.
Third, the "371" indicator next to the "Customizing Themes" heading has no meaning whatsovever. 371 what? Is that power user UI?