Create a Linear Gradient with SVGO

lgrad.go

package main

import (
	"bufio"
	"github.com/ajstarks/svgo"
	"os"
)

func main() {
	width := 1920
	height := 1080

	lg := []svg.Offcolor{
		{0, "rgb(0,0,0)", 200},
		{1, "rgb(0,0,0)", 128},
	}

	_ = []svg.Offcolor{
		{10, "#00cc00", 1},
		{30, "#006600", 1},
		{70, "#cc0000", 1},
		{90, "#000099", 1}}

	f, _ := os.Create("lgrad.svg")
	w := bufio.NewWriter(f)

	g := svg.New(w)
	g.Start(width, height)
	g.Rect(0, 0, width, height, "fill:white")
	g.Title("Gradients")
	g.Def()
	g.LinearGradient("h", 0, 100, 0, 0, lg)
	g.DefEnd()
	g.End()
}