How to change the background color?

[Michaelzhouisnotwhite]

How to change the background color?

[jjspace]

This is an old issue but figured I'd lend an answer.

This can be achieved by providing a custom markdown.styles CSS file in VSCode's settings. See Using your own CSS.

As a note you will have to apply the background style to the .github-markdown-body class not just the body element to avoid the extension overriding it. See comment #98 (comment)