The LaTeX package custom specifies:
article class with math fonts from mathpazo package.\hypersetup.The style file preview.css specifies Latin Modern Sans typeface for VS Code preview of markdown file. Place the style file in the root directory of a VS Code workspace and add the following to the workspace settings file .vscode\settings.json:
{
"markdown.styles": ["preview.css"]
}
See the example provide in .vscode directory of this repo. Opening this repository in VS Code will apply the style to this preview of this readme file. See the rendered HTML version here.