I always choose light theme in all my IDEs and unable to answer whenever some one asks why. Mind to share some of yours?

Same. I prefer light themes for small displays and dark themes for big displays.
Dont know why

Hmm.. I've always associated the dark theme with people who spend their entire life in the basement, and the light theme with hipsters:D
+ The light theme is easier to see, when you have a bad viewing angle.

I personally use the dark theme most of the time because I usually code indoors with either dim or white light and I feel having more white light being shot at my eyes makes my eyes tired faster. The only time I switch is when I'm coding outdoors and there's too much ambient light.

I mostly use dark but recently i worked at a shitty monitor where i had to switch to the light one in order to see a thing.

I use light theme when I have to code during the day but as soon as sun goes down I switch to "Dracula theme" 😁

Light themes and white backgrounds hurt my eyes. The white just pops up too much.

@hanieh-m use f.lux its life changer. Prepare for few rough days, after that you will hooked :)

I always choose dark theme. I also dont know why?

I use dark themes for two reasons:
1. Light theme makes my eyes hurt after a long session
2. I just think it looks much better (completely subjective, though).

However, I have to admit that I'd rather see a light theme than a shitty dark one (like those with #000000 background and #00FF00 text).

I love mostly Solarized Dark, Darcula and Monokai (no specific order).