This weakaura is meant to give a warning about your spec, in case your off-spec is similar to your main spec, but you only use it for certain occasions.
You can customize which "spec" loads the warning icon by going to:
Load -> "layer class (Warrior in this case)" -> "Talent" (Select the talent to trigger the icon to show up).
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layer class (Warrior in this case)" -> "Talent" (Select the talent to trigger the icon to show up).
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