Thank you for pointing out this problem! I forgot about the icon displayed in the context menu.

I looked into the documentation and the icon is being picked up from a default icon value that is specified in a manifest file (packaged along with the extension).

However, I am unable to find any programming API that allows me to change the context menu icon (the documentation indicates that only icons for the sub-menus of the main context menu entry can have customizable icons). I will continue to look into this, in case I've missed something.

Once you click on (+) and then on the "Read Later" link; you can click on "Offline Links" to get a list of all pages saved for reading later. These are stored locally and accessible even without an internet connection.

The "Offline Links" is available only after Tranquility Reader has processed a page. So, you will first have process some page first before you can access "Offline Links" saved in earlier sessions. This is a limitation of the current design. In future releases, I will try to add more user friendly ways to access the offline content without needing to run Tranquility on some page first.