I actually switch depending on the lighting conditions around me. If I'm on the train on my laptop during the day, it's too bright to read text on a black backg

I actually switch depending on the lighting conditions around me. If I'm on the train on my laptop during the day, it's too bright to read text on a black background. Everything becomes way too difficult to read, so I set all my terminals/editors to white. Once I'm somewhere darker or it's later in the day, I'll switch everything back.