Randomize the colours of a group of lines, borders, and fill areas - "Shape Style > Rainbowify"

Note: To use the Add Group feature, you must be logged-in to a Pro account. To learn how to upgrade, visit this link: How to upgrade to a Pro account

Draw the lines, shapes, and labels 

1. In Map View, draw a line. For example; a straight line.

   To learn how to create the lines, visit these links:

    

   Draw a straight line - (Line Tool)

   Draw a freeform line - (Draw Tool)

   Draw a precise curved line - (Pen/Curve Tool)

   Draw a flight line - (Flight Line Tool)

    

    
2. Draw a shape. For example; a rectangle.

   To learn how to create the shapes, visit these links:

    

   Draw a rectangle - (Rectangle Tool)

   Draw a circle - (Circle Tool)

   Draw a polygon - (Polygon Tool)

    

    
3. Create a label.

   To learn how to create the label, visit this link:

    

   Create a label - (Label Tool)

    

Add the overlays to a folder

4. At the top of the Layers Panel, click on the Folder Icon displaying the tooltip: "Add Group".
   You will see the folder added to the Layers Panel.
    
5. Click and drag each overlay’s row into the folder.
   The folder now holds a set of overlays, considered a Group.

   To learn more about grouping overlays, see; Grouping markers/elements by using folders.

Select the folder

6. At the top of the Layers Panel, click on the Gear Icon displaying the tooltip: "Operations & Analysis".
   You will see a window appear titled: "Operations & Analysis".
    
7. Under the headings, "Bulk" > "Shape Style", click on the link: "Rainbowify".
    
8. Under the heading, "Select Group", click on the button: "Select".
    
9. Click to select the folder you created.

Rainbowify the overlays

10. Click on the button: "Rainbowify".
     
11. In the top-right corner of the Operations & Analysis window, click on the "X" button.
    In Map View, you will see the randomized colours of the selected overlays.

See also

Change the colour of a group of lines and borders - "Shape Style > Line Style"

Change the colour of a group of fill areas - "Shape Style > Fill Style"