One of the true joys of Sitecore is the ease of customization. We use proxies fairly extensively on our site, and a colleague recently complained that the Content Editor did not give a clear indication of whether an item is a proxy, and what is its source. This inspired me to see if I could add a gutter icon to identify proxies, similar to the gutter clones icon that ships with Sitecore 6.4. (The "gutter" is the area to the left of the content tree with icons, such as "My Locked Items", that can be toggled on and off.) Like the clones icon, I wanted one that would navigate to the source item when clicked. This is a fairly straightforward task, but I did have to lean on ReSharper's decompiler to see how the Sitecore guys built the clones icon.
