Edit: In hindsight, I guess the problem here is that, the cables came with the cabinet I bought (Fractal Design Refine S).
I need help in confirming that this is indicative of a proper setup for the front panel connectors.
The manual for the cabinet is really poor, and afaik does not explain, nor show, how to properly connect the cables here.
When I attach the PLED + and PLED - as per instructions, the headers face this way. There is no way of knowing if the headers next to it, is properly seated, so I mimicked the direction with the LED ones, and then it looks like this.
The second photo below, is a photo of the manual for the computer case.