Very similar to how the recipe book in the game "Potion Craft" is organized. I essentially want to be able to mark pages and assign an icon, letter, symbol, or whatever to the tab. Clicking the tab brings you to that page. I also want the freedom to arrange these tabs around the perimeter of the book.

I'm not even sure what search terms to use to find a software like this. I'm not looking for anything robust, just a simple reader app with minimal page marking with intuitive visual organization.

Does anything like this exist?