Each tab is a whole bookmark page: its own title, its own sections, its own colors. The name on the pill is the title at the top — renaming one renames the other.
Colors here dress this tab only, and only while it is open. The site's own palette does not move.
Bookmark icon is the icon for this page — the one Chrome keeps when you bookmark it. Empty for the site logo.
Squares per row — anything from 4 to 20. A square never goes narrower than the name on it, so a narrow page tops out well short of 20: widen the page first, and a small screen fits fewer again.
Full uses the whole window, so on a big screen raise the squares per row to match — otherwise they grow instead of more of them fitting.
.html is the format Chrome, Firefox, Safari and Edge expect when importing: every section arrives as a folder and every bookmark keeps the name you gave it here. In Chrome: Bookmarks → Import Bookmarks and Settings → Bookmarks HTML File.
A whole list, written out beforehand, titled with the name on the button. It is what this app starts with.
Replace this tab puts the open tab back the way it came, title and all. It replaces what is in there — export first if you want a copy.
Delete every bookmark empties every tab at once. The tabs stay, with their names and their colors.
