What does the coloured bar mean/do on the left side of the editing panel?

I've looked for it in the online instructions, but I don't know what the name is to find out about it.  I believe it has to do with keeping track of local changes, but not sure how to use it....

1 comment

Yes - these are change markers. See https://www.jetbrains.com/help/webstorm/viewing-changes-information.html#local_changes

If you don't need them you can turn Highlight modified lines in gutter off in Settings | Editor | General

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