bodymovin/player/js/effects/TintEffect.js

After Effects plugin for exporting animations to SVG + JavaScript or canvas + JavaScript

var TintEffect = (function(){
    var grayMatrix = "0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0";
}());