You can override an existing skin by creating a new skin using the "dependsOn" attribute. There is a write-up in the Tips and Tricks topic.
You would need to provide a base-64 version of the last fm icon
thank you Steven , I already did that ( create new skin which depends on the main skin ), but I don't know the element ID for the last fm icon, I already tried <element id="LastFmPluginIcon"> but it has no effect.
Are you sure about that?
The Lastfm icons I create for my skins have always been image files that go into the 'images' folder, not base64 elements in the xml?
can you share the element ID for the last fm icon ?
you are right - it cant be overriden
so this means it can not be done , right ? if so, is there any other solution ?