<h4 dir="auto">Issue Description</h4>

<p dir="auto">Night Mode: map-aside<br>
the close and expand buttons are the same color as the background.</p>
<h4 dir="auto">Screenshot</h4>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/10391294/14452463/0b897a74-008f-11e6-8d7e-33bd519d8435.PNG"><img src="https://cloud.githubusercontent.com/assets/10391294/14452463/0b897a74-008f-11e6-8d7e-33bd519d8435.PNG" alt="capture" style="max-width: 100%;"></a></p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/12993334/14400255/a252ab5a-fe1f-11e5-8b21-9ae79a8970eb.png"><img src="https://cloud.githubusercontent.com/assets/12993334/14400255/a252ab5a-fe1f-11e5-8b21-9ae79a8970eb.png" alt="image" style="max-width: 100%;"></a></p>
<p dir="auto">I think there's too much contrast between the table rows for the list of completed projects/challenges. Scrolling down hurts my eyes. I'd make white rows darker.</p>
<p dir="auto">The text in the white rows is hard to read. A little more contrast here would be good.</p>
<p dir="auto">I also suggest changing the white background for the heat map to match the page background color. It seems a bit out of place.</p>
<p dir="auto">Other than that, I think the Night Mode looks pretty good.</p>