kangax/fabric.js — pull request #862 by Kienz (2013-09-20 17:54:04+00:00)
Title: [BACK_INCOMPAT] Initialization of `fabric.Image.filters.Tint` is now different

Option object:
- options.color: color string value
- options.opacity: 0..1
Now you can define opacity of the tint filter (by rgba/hsla colors or with opacity attribute)
Doc additions