I would like to write an XML Schema in Visual Studio Code and then some XML that is valid against that schema but surprisingly there does not seem to be a facility to do this either built-in or via an extension. Similar questions have been asked in the past ([here](https://stackoverflow.com/questions/46198147/validate-xml-with-vs-code "here") and [here](https://stackoverflow.com/questions/43355208/autocomplete-of-xml-tags-in-vscode-based-on-xml-schema "here")) but I wanted to renew this question and also ask if no-one is aware of an existing extension, is this something one can request of the vscode github team themselves and if so, how?