* @param {string} color * @param {number=} h 0 ~ 360, ignore when null. * @param {number=} s 0 ~ 1, ignore when null. * @param {number=} l 0 ~ 1, ignore when null. * @return {string} Color string in rgba format. * @memberOf module:zrender/util/color
(color, h, s, l)
source not stored for this graph (policy: none)
nothing calls this directly
no test coverage detected