Missing icons in Visual Studio 2015 after installing extension

EDIT: Download the fix from Microsoft.

https://support.microsoft.com/en-us/kb/3095681

I had same issue and it was resolved by just remove the ImageLibrary.cache file from

C:\Users\< user ame>\AppData\Local\Microsoft\VisualStudio\14.0\ImageLibrary and re-open the visual studio

Microsoft released a solution yesterday. Here is the link. I had to close and reopen VS for the update to take effect. Worked like a charm!

https://support.microsoft.com/en-us/kb/3095681