What's your lichess theme? :)

Smiling knights huh? That's Merida, the second from the left, on the top row. :D

It's my second favourite and the one I use in various chess programs (most of which lichess has replaced, mind you).

Off-topic: had a really slick discovered checkmate (!) in the CAPTCHA -- lichess.org/sA8ChYvX

Generally I use this:

Background: dark/night (much easier on the eyes, prevents migraines)
Board: wood (brown and tan)
Pieces: 2D Merida
Custom CSS: LichessChessCube colour styles from userstyles.org plus some additional modifications of my own (fixing a couple of errors in the userstyles.org theme and removes the "warning do you really want to ask this question" block when posting a query as I've been here long enough to know when I want to ask something).

When I do use 3D pieces I usually opt for the grey board and the 4th set (left to right, top to bottom; white & blue vs grey & red). They are so ridiculously pretty (and Clarkey should be very proud).

As I've mentioned in the past, the only other site I play on is the ICCF site (iccf.com) and it doesn't have the same type of UI options as Lichess. So I made my own theme for that too, which is also a darker theme: userstyles.org/styles/105662/dark-iccf

I think this is the best.