From Second Life Wiki
Using these skins modifies some files in your \SecondLife or \SecondLifeReleaseCandidate folder (on your hard drive) from what is installed by the software from Linden Lab.
Use caution when installing these skins, as modifications to your installed software files are not officially supported by the [http://secondlife.com/support Second Life support
This category lists viewer skins that Residents have produced to work with the new Skinning architecture being developed (in early form) in recent versions of Second Life Viewer 1 and new skins being developed for Viewer 2.
For instructions on posting new skins here, see Template:viewer skin
Viewer 2 Skins
Viewer 2 uses a different structure for its skins so skins developed for Viewer 1 are not applicable to Viewer 2 and vice versa.
List of Viewer 2 Skins
Viewer 1 Skins
The Tutorials to learn to make your own Viewer 1 skin begin at Skinning HowTo/Basics
1- Replace silver or default files with downloaded material.
Here is a quick video tutorial by Ewan Mureaux using the JB Kraft Dark Skin for Viewer 1 and how to install it. Be aware that this may change in the future.
2- Modify the Skins Panel to add different skins across reinstalls. Modify the skin panel
List of Viewer 1 Skins
This category has only the following subcategory.
Pages in category "Viewer Skins"
The following 14 pages are in this category, out of 14 total.