An extension that provides the "ascii-tree" language, for enhancing ASCII trees.
It basically enables folding and some basic syntax highlighting for ASCII trees.
Install
Follow the instructions in the Marketplace, or run the following in the command palette:
ext install fabiospampinato.vscode-ascii-tree
Usage
Sometimes plain-text files will be auto-detected as "ascii-tree", but you can also set this language manually when you need to.
Demo

License
MIT © Fabio Spampinato