Cooler Master HAF 922 Help

Hello tom's hardware i have a small problem I have the case listed and i noticed that the led connectors don't show which side is positive or negative like this example of some random led connectors I also checked the case manual and Mobo manual and nothing....



was just wondering if this goes the same for the led connectors on my case since im afraid of something bad happening since this is my first pc build any help is appreciated