Color schemes voluntarily added by the user to an app like vim, great.

All the more reason for developers to keep the app itself responsive to the user’s environment by default.

Don’t bake in elaborate visual choices. It’s a usability thing first and a style thing somewhere much farther down the list.

Keep it simple from the factory. Don’t get in the way of customization. Let the user’s environment do the work of adapting it to the user.