Test that changing the user interface level updates the page's background color.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


Dark Mode = Off, User Interface Level = Base
PASS pageBackgroundColor is "rgb(255, 255, 255)"

Dark Mode = On, User Interface Level = Base
PASS pageBackgroundColor is "rgb(0, 0, 0)"

Dark Mode = On, User Interface Level = Elevated
PASS pageBackgroundColor is "rgb(28, 28, 30)"

Dark Mode = Off, User Interface Level = Elevated
PASS pageBackgroundColor is "rgb(255, 255, 255)"

PASS successfullyParsed is true

TEST COMPLETE