I use the learn-preview VSCode extension to show markdown in a side by side fashion.
Not sure when this stopped working since the colours changed but now it's unreadable:
Highlighting the text helps but this shouldn't be necessary.
Update the settings.json with the following.
(You can pick whichever colour you prefer.)
"workbench.colorCustomizations": {
"textBlockQuote.background":"#95e0d6"
}
This is a BlockQuote
As an image:
Info
Extension:
Name: learn-preview
Id: docsmsft.docs-preview
Description: Learn Markdown Preview Extension
Version: 1.0.2
Publisher: Microsoft
VS Marketplace Link: https://marketplace.visualstudio.com/items?itemName=docsmsft.docs-preview