Supplement Update 25-12-2025 (Version 4.0):Finally, I've finished updating the extension. There are many updates in the latest version:
- Modifying themes, removing some, and adding new ones.
- Adding a theme specifically for colorblind users.
- Removing the "Set as default" button and adding an "Edit" button to modify the code and name of any saved theme.
- Adding an image upload button that uploads images to a hosting site and retrieves a BBcode link with the ability to resize them.
- Adding an advanced Quill editor with advanced features such as bold, zoom, colors, horizontal font, quote, code, and alignment directly within the editor, then converting it to BBcode.
The biggest update, and the one that took me the longest, was the advanced Quill editor. The idea originated from the @Royal Cap
Ultimate Bitcointalk Userscript: Modern Editor + One-Click Image Upload script.
Actually, the script had some issues, but the image upload button worked perfectly, so I had the idea to take just the image upload section and look for a better editor script.
I found the Quill editor; it's easy and great, but the problem is that it works with HTML while the forum uses BBcode. So the solution was to find a function that converts the text to BBcode so it would display correctly in the forum. During this process,
I encountered many problems that required a lot of work to resolve, but in the end, we got a great editor integrated with the BitcoinTalk editor. So please try it and let me know if you encounter any runtime issues.
These are screenshots from the editor at the time of writing:

This is after pressing the preview button:

As you can see, the advantage here is that you see everything in real-time.
There's also a nice feature that displays the word count and character count in the status bar.😍
Can you add some custom forum themes that are compatible for people with colorblind conditions?
I have seen recently one member was asking a question for this for one specific case when red and green colors could not be differentiated.
It would also be good to have list of all custom bitcointalk themes.
I added a theme specifically for people with color blindness. I wasn't sure exactly what was required, but I added universal standards suitable for this condition, so I would be happy if someone tried it and gave me a review so I could make the necessary adjustments.

I've uploaded the update to the GitHub repository, and here's the link:
https://github.com/yhiaali3/bitcointalk-scriptNow, I would appreciate it if @NotATether could upload the extension to the Chrome Web Store.
Thank you very much.
I hope you like it.