I want to be able to close the island with a middle click like a normal tab.
If I open a few new pages from a single source (thus creating an island) I often want to get rid of them after I am done with whatever lead to them being open. I don't want to focus on the context menu and search for the close button (which could at least have an X icon so I don't have to read the options as I don't see that good)..
I want to quickly middle click on the colored bar of the island and presto, tabs and island gone.