Outline UI compatible with IDE packages. Presents symbols of an active text editor in a tree view, with "jump to symbol" navigation (on click).
atom-ide-outline in Atom
Install relevant IDE language packages e.g.:
For support for other language/syntax, try searching Atom packages registry -
ide- prefix is unofficial, but helps narrow down the amount of results.
Take a look at Contributing Guide.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.