Yes, it is Emmet.
Generic snippets are defined in /usr/share/code/resources/app/extensions/html-language-features/server/node_modules/vscode-emmet-helper/out/expand/expand-full.js
Simply change:
"form": "form[action]",
to snippet of your choice, for example:
"form": "form[\[formGroup\]]",
Another approach:
- create directory for your private emmet snippets e.g: ~/.config/emmet
- open VS Code settings (Ctrl + ,)
- search for emmet.extensionPath and set it to ~/.config/emmet
- create ~/.config/emmet/snippets.json file with
{
"html": {
"snippets": {
"form": "ju-hu"
}
}
}
more details https://code.visualstudio.com/docs/editor/emmet#_using-custom-emmet-snippets