Software: Settings (Windows Usage)
User query: Switch default Windows mode to Dark
Difficulty: simple
Ground-truth plan:
Task 1: Switch default Windows mode to Dark
Subtask 1: Open the Settings app on your device.
Subtask 2: Click on 'Personalization' in the Settings menu.
Subtask 3: Click on 'Colors' in the sidebar.
Subtask 4: Click on the 'Choose your mode' dropdown menu.
Subtask 5: Click on 'Dark' to select it.