Don't feel obtuse. Grasping the basic concept of something new is usually the biggest and most frustrating hurdle to take.
The basic differences between xml skins and compiled xmlc skins are these:
An xml skin is just a single file that you can edit, save and place in MB's skins folder so it can be used as a skin.
This xml file allows you to change pretty much all colours of a skin. It also allows to change several icons and graphic elements in a skin.
One area where it has very limited capabilities is the main player controls bar.
While it can change the colurs of the elements there, an xml skin has very little options to change anything about the layout.
E.g. the location and visual appearance of buttons and controls will be defined by MusicBee's basic design.
That's where xmlc or so called 'compiled' skins come in.
They will allow to use image files for most of the design elements in the main player controls panel, as well as to position the elements inside it to your specific liking.
For creating it you only need several files and a set folder structure.
That would look like this:
- The 'Images' folder will contain the images for the image elements that you want to use in the player bar.
- The skin file that will used as a basis for the xmlc skin is identical to a normal xml skin. (it's called 'My New Skin' in the screenshot)
- skin.xml will contain information about the layout and positioning of the elements in the main player bar.
- skin_wavebar.xml will contain information about layout and positioning of the elements in the player bar used when the user selects to display the wavebar in the main player panel.
- SkinCreator.exe is the tool that will allow you to create the xmlc file. It will use the information it find in the xml files and the Images folder.
- The svg dll's are there if you want to choose vector images instead of plain png images for the elements in the player controls bar.
You should be able to find these files by doing a forum search or in the 'source files' some skinners have made available for download.
Further more detailed instructions and tutorials can be found in the skinning guides on this board.