Part of the beauty of WW is that they really don't restrict what you eat by making a bunch of rules to follow. There are the 8 healthy guidelines, of course, but a lot of those are common sense. They don't ask you to count anything aside from points (no counting carbs or fiber or whole grains), which makes it one of the easiest plans to follow.
From the WW website, here are the 8 healthy guidelines, if you haven't seen them before:
1. Eat at least five servings of vegetables and fruits each day.
2. Choose whole-grain foods, such as brown rice and oats, whenever possible.
3. Include two servings of milk products – low fat (1%) or fat-free – each day.
4. Have some healthy oil (olive oil, canola, sunflower, safflower or flaxseed) each day.
5. Ensure that you are getting enough protein by choosing at least a serving or two of meat, poultry, fish, eggs, or dried beans each day. Many dairy products are also good sources of protein.
6. Limit added sugar and alcohol.
7. Drink at least 6 8-ounce glasses of water a day.
8. Take a multiple vitamin-mineral supplement each day.
Source
These are great guidelines to follow no matter what program you are following, and this is all WW asks of you. It is up to you whether you want to track additional metrics such as fiber or whole grains (or carbs or sugar or protein etc).