Hi guys,
Recently implemented idMso/imageMso autocomplete extension for ribbon files (basically, supports all office applications, including Visio).
As id/image database, M$ docs files are used (see the links below)
(https://visualstudiogallery.msdn.microsoft.com/site/view/file/223310/1/ribbon.gif)
Note that for images (imageMso) it also shows the images themselves :)
VS 2013: https://visualstudiogallery.msdn.microsoft.com/31a8d5eb-b458-4f9d-97f4-c8e379496c37
VS 2015: https://visualstudiogallery.msdn.microsoft.com/7be17bc0-c682-40df-aaa0-6f2e8e8fdb14
Hope you find it helpful!
Feedback is hightly appreciated!