Heat a grill pan over medium-high heat and coat with cooking spray. Sprinkle salmon with salt and pepper and cook skin side down for 5 minutes. Turn and cook for 2 more minutes.
While salmon is cooking add the vinegar, oil, dark sesame oil, soy sauce and brown sugar to a large bowl and whisk to combine.
Add cabbage, carrots, cilantro and onions to the bowl and toss to combine. Taste and adjust seasonings.
Divide the cabbage salad between plates, top with the salmon and sprinkle with the almonds and sesame seeds.
Notes
You can use all purple or all green cabbage, it will still taste great, just won't look as pretty.