Question: Different colored tickmarks?

Is it possible for tickmarks to be different colors? For example, say I'm working with the plot


Is there a way to make the tickmarks at x=-1/2,1/2 red while making the tickmarks at x=-1,1 blue?

Or, alternatively, is there a way to turn the tickmarks at x=-1/2,1/2 into red subticks and make the tickmarks at x=-1,1 blue?


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