The top portion of the sheet (darker background) is what we call the character header.
Basic/ core statistics and information are found here. Clicking your portrait or name will reveal a character menu with various actions:
- Edit Character takes you to the builder to modify your character.
- Manage Experience opens a window to manage your character levels (for Milestone advancement) or XP.
- Short Rest opens a window to track Hit Dice and reset Limited Use abilities, as does Long Rest.
- Open Preferences to manage your character-specific settings.
The box in the top right is called the status area. You can also keep track of Inspiration for your character in the character header.