Goal: To read the book on the Kindle app in a different way, I want to change the book's theme.
Steps:
action: action_type: navigate_back
step_instruction: Go back to the previous screen
action: action_type: click
step_instruction: Click on the Aa tab at the top of the screen
action: action_type: click
step_instruction: Click on the themes option 
action: action_type: click
step_instruction: Click on the Compact option