What is this Windows component called?

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I have difficulty sometimes viewing this item. I want to make only this item have more contrast. I have purchased a program named Windows Blinds that MAY accomplish this. Before I state my question for the program authors I must be able to correctly identify the item in question. What is this item called? And, if you happen to know if Windows Blinds or any OTHER software will accomplish this please tell me.

Maybe I am the ONLY one to feel this way, but I find this site horribly inadequate when it comes to usability and ease of operation. It is not intuitive at all., I am no dummy, but it does not flow easily. Wish someone would address this by actually having a test sample of people attempt to ask a random question and see the difficulty they will experience. I tried this experiment with three of my associates and all three became frustrated when trying to post a question. Just my thoughts. Experts are WAY superior! Site navigation = POOR