We enhance the UI of our platforms continuously, both App and Web, to give the best experience to our users. And we know how much traders love trading on a big screen. For those who use Dark Mode on web.dhan.co, you must have already experienced it by now.
Now Live on Dhan Web: Enhanced Dark Mode 
How to enable this?
In your My Profile section on Dhan, you will see the option to toggle between dark mode & day mode. If you’re already on Dark Mode, you already have the new UI.
While we are working on a lot of updates while enhancing the core trading experience, we intend to keep the web app light. More on this here - https://community.dhan.co/t/upcoming-features-on-dhan-for-feb-mar-2023/6492
Also, do keep an eye on the upcoming : Dark Blue Mode on the Web.
Thanks,
Shraddha
Growth Team