Download from the marketplace or go to view > extensions
and search for urbit-pilled.hoon-highlighter
in vscode extensions.
If you have Vscodium you can download the extension from Open-vsx
git clone https://github.com/urbit-pilled/vscode-hoon
npm i && npm run package
view > extensions
and then press the...
button in the top right and clickInstall from VSIX
then open the click on thehoon-highlighter-0.x.vsix
file.