The icon for 1Password for Safari doesn't follow convention and clashes with the other icons on Safari.
Take a look at this screenshot using this community site as an example. The other icons on the Safari Toolbar (Noir, 1Blocker, Share) have sections that are transparent, and look pretty good against the page's
theme-color. This oddity is even clearer on a new window, where the 1Password icon is noticeably darker than the others.
1Password Version: 8.7.0 (Beta)
Extension Version: 2.3.1
OS Version: macOS 12.3.1