Markdown Code Render light theme needed

Describe the bug

Markdown Code Render Issue -- Need light code block being rendered in the light theme, rather code block always being dark.

To Reproduce

1. Go to https://dev.to/suntong/qtractor-complete-guide-1j2o
2. Scroll down to "1. Understanding the Linux Audio Stack"
3. See the code block output: the code block is dark, in the light theme.