children(required): the content to negate.sepia: optionally the intensity of the effect. 0 is normal. higher than 0 will add sepia.
var Sepia = require("gl-react-sepia").Sepia;
// or
import {Sepia} from "gl-react-sepia";<Sepia>...</Sepia><Sepia sepia={1.2}>...</Sepia>