NOTE: the latest version is 3.0.1
The Silver range of Colors.
rgba(211, 211, 211) #D3D3D3
rgba(192, 192, 192) #C0C0C0
rgba(169, 169, 169) #A9A9A9
rgba(128, 128, 128) #808080
rgba(211, 211, 211) #D3D3D3