View Tasks
The Tasks tab lets you view collections of tabs. Right from the start, the sidebar options provide a variety of ways to selectively view tasks you're interested in. (The default view is Due today, which shows tasks for which the due date is now.) In addition, you can use the options under the gear icon to create bookmark folders and custom views. (Those things work because each task is another record in the system, and the Tasks views are just different ways to select records for viewing.)
Task Colors
Tasks appear with these color combinations: