code: function (r, g, b, alpha) {
              // Private initialization: copy Color value directly
              if (r instanceof me.Color) {
                  this.glArray.set(r.glArray);
                  return r;
              }
              this.r = r;
              this.g = g;
              this.b = b;
              this.alpha = alpha;
              return this;
          }
docs: Set this color to the specified value.
  @name setColor
  @memberOf me.Color
  @function
  @param {Number} r red component [0 .. 255]
  @param {Number} g green component [0 .. 255]
  @param {Number} b blue component [0 .. 255]
  @param {Number} [alpha=1.0] alpha value [0.0 .. 1.0]
  @return {me.Color} Reference to this object for method chaining