Paste the below code in the CSS -> Inline section
.legend-svg {
height: 30px;
width: 40px;
}
.legend-rect {
stroke-width: 3;
stroke: rgb(0,0,0);
height: 20px;
width: 40px;
}
/*color of the legends*/
.legend-1 {
fill:#E38211;
}
.legend-2 {
fill:#339300;
}
.legend-3 {
fill:#73ede7;
}
.legend-4 {
fill:#e0f400;
}
.legend-5 {
fill:#97dcfc;
}
.legend-6 {
fill:#e00043;
}
.legend-7 {
fill:#b700cb;
}
.legend-8 {
fill:#b0b0b0;
}