Intro
I just built a Chrome Extension to highlight codes for Medium articles. For now, it can also support those websites that have <pre/> element, such as Stackoverflow, FreeCodeCamp …
Screenshot
Here’s the screenshot
Also you can choose any themes and setup your language preference.
Links
In the end
Hopefully, it could help if you read some tech articles without highlighting the codes 
If you find any bugs, just put an Issue on my Github, thx