Task: Add the blue color shading above the solar panels in the current sketch on the Sketchbook app.
Steps:
Click on the color palette at the top of the screen. 
Select the blue color in the outer ring.
Click on cross at the bottom of the screen.
Click on cross at the bottom of the screen.
Using the swipe from left to right add the color shade.
Using the swipe from left to right add the color shade.
Using the swipe from left to right add the color shade.
Using the swipe from left to right add the color shade.