This skin was inspired by a great script I came across on Codepen, so I want to give some credits!
Animated Background Gradient by Mario Klingemann
Extended to work for IE, too, by a DWB forum member, LaGeek (thanks for the help!):
Overlay Pattern from: bestpsdfreebies.com
Many thanks also to the helpful members in DWB forum, who helped me to solve problems and make some steps forward, one after another!