Function isGradient

docs/app/js/sanddance-app.js:121034–121036

(value1)

}
const patternPrefix = "p_";
function isGradient(value1) {
    return value1 && value1.gradient;
}
function gradientRef(g, defs, base1) {
    const type1 = g.gradient;
    let id = g.id, prefix = type1 === "radial" ? patternPrefix : ""; // check id, assign default values as needed