What is the best color theme for an IDE on a sunny day?

Question

IDE

Good day toasters and toasters!
The bottom line: sometimes freelancing in good clear weather on the street. In intense sun, the code in the IDE is hard to see (for example, in VIsual Studio Code, monokai dark soda). I tried different color themes, but I just can’t find the right one and then I take an umbrella.
Question: [I understand that it's a matter of personal preference, but still] what kind of plan do they usually use the color theme in the IDE in sunny weather while being outside?
ps I would especially like to know the experience of those who often winter / wintered in southern countries and worked from there. Thanks in advance to everyone for the answers
. themes are not necessary for VSC, it is possible for other IDEs