Yes, Kotak Neo offers Dark Mode. To enable this feature,
Login in to your account, then go to Profile
You can refer to this video explaining how to enable dark mode in the Kotak Neo app.
How to enable dark mode on Kotak Neo website?
How do I upload/place and modify basket orders?
How do I place a sell order for my open positions?
How do I manage my watchlists?
I was given excel rights yet am unable to export my watchlist