An easier way for the color blind to identify WhatsApp Web™ message delivery status.
This extension will simply make blue double-tick images a full round circle instead. Works for chat messages as well as those in the sidebar.
Just install and you're ready to go!
Update: Updated the extension to work with the latest WhatsApp Web version. Since adding a full circle is not possible anymore due to a different HTML structure and CSS classes, the blue double tick is now just re-colored with a brighter blue to make it more noticeable from the regular green double check.
This is an unofficial enhacement for WhatsApp Web. This extension is not related in any way to WhatsApp Inc.