With the Symbol component, you can add symbols such as circles, arrows, triangles, and stars to your slide.
1. Click on '+Component', and then on 'Symbol'. Choose one of the following symbols to add to your slide: rectangle, triangle, circle, hexagon, star, arrow, rocket.
2. The newly created symbol will appear in the top left corner of the slide. To customize the symbol, click on the gear icon, and then on the pencil.
Click here for more explanation about all the functionalities in symbol formatting.