<linearGradient id="linearGradient6019" xlink:href="#linearGradient6001" y1="-Infinity" y2="Infinity" x1="0.401576" x2="0.39193"/>

https://www.w3.org/TR/SVG/pservers.html#LinearGradientElementX1Attribute

spreadMethod = "pad | reflect | repeat"

ctx.createLinearGradient(x,y,z,q);