in github pages how to undo theme-chooser

Question

I chose a built-in github page theme earlier for a github.io page but eventually decided to use my own html/css file. However as a webdev beginner I couldn't find a way to un-do the theme, even after removing the .yml file. Any advice? Thanks.

Answer 1

Jekyll themes are configured in _config.yml.

Open _config.yml, remove theme: minima or the theme you have selected, and build your own structure.