I'm afraid I have no time to spend on skinning...
However, you may perfectly use different skins with just a quick hack:
- Go to the skins/ directory of the Cool VL Viewer installation.
- Rename the "silver" folder as "silver-old".
- Copy any skin from any v1.2x of Snowglobe v1 based TPV into the skins/ folder (for example "dark" from Emerald).
- Rename the imported skin folder ("dark" in our example) into "silver".
- Start the viewer, open the Preferences panel, Skins tab and choose "Silver" (the preview is of course not the right one, but this is unimportant).
- Quit the viewer and restart it.
- Done. Enjoy your new skin.
Note however, that only skins without a xui/ sub-folder will work properly (since this sub-folder contains modified versions of the floaters from the default/xui skin, and some of these floaters would need to be modified to work properly with the Cool VL Viewer: see the xml files in the silver/xui/en-us/ folder).