How to add Multiple legend with different colors in Gantt Chart using Plant UML?

It's working for me, for one legned. It's taking the last line of code... Is there a way to show, different parameter with different colros. Like "planned" "In progress" "Done" into grey, green blue color bars.

I have added below code :

legend{ Font Size BackGround Color }

legend Test 1 end legend

legend{ Font Size BackGround Color }

legend Test 2 end legend