How to Change the Arrow for a Screenshot (Macs)

Colour

1. 
   Open the file of the screenshot you want to put the arrow on.
2. 
   Click the pencil icon at the top menu. It should be the last box-shaped button with a picture of a pencil on it.

   1. Once you click the button, another menu will appear right at the bottom of the top menu.
      
3. 
   Click Arrow option.
4. 
   Click the colourful square icon on the bottom menu.
5. 
   Choose your choice of colour from the drop-down menu.
6. 
   Create your arrow.
7. Choose another colour.

   1. The arrow will change to a different colour.