1. Change the background color of the project container to a very light color. 

2. Change the headers of the project to be bold with slight larger text. 

3. Allow the project header of the background to be the same color as the project container, but slightly darker.

4. Change the button text to a button icon for + and -.

5. Align the + and - of the project buttons with the + and - of the tasks and subtasks.

6. Each project color should be different

7. Allow uploading a custom SVG icon via the settings modal.

8. Automatically detect dark mode and swap favicon colors accordingly.

9. Save and load a secondary accent color (e.g., for UI highlights or hover effects).

10. Enable keyboard shortcuts to open modals or trigger common actions.