Echarts modify legend style (square, rectangle, circle, etc.)

legend: {
          itemHeight: 24,
          itemWidth: 24,
          data: [
            {
              name: '修边比例',
              icon: 'rect',
            },
            {
              name: '平均门幅',
              icon: 'rect',
            }
          ]
        },

icon	exhibit
circle	round
rect	rectangle
roundRect	Rounded Rectangle
triangle	triangle
diamond	diamond
pin	water droplets
arrow	arrow
none	Don't show icon

Effect: