(22Nov2019) v16 is now available for Visual Studio 2017 and Visual Studio 2019
Apologies for the long delay, and many thanks to the contributors who did the update.
Indent Guides for Visual Studio
Displays indent and page width guides in Visual Studio text editor windows.
Guides can be displayed at the indent specified in your settings, regardless of tabs or spaces, or wherever text has been indented to. Page width markers can be displayed at a fixed location and will change color when code extends past them.
There are three styles of guides: solid, dotted and dashed, available in thin and thick varieties and customizable color. The default is dotted grey, as shown in the image. Each indent level can have a different style and color.
Guides can be shown and customized for any language in Visual Studio. The extension understands whitespace characters, not code.
Source code is available at github.com/zooba/indentguide