Step one:
Create a new layer-set called Theme Thing.
Start with a black background canvas.
In a new layer, draw a large #B55921 round rectangle using round rectangle tool. This will be the size of your header.
Add the following layer styles: Inner Glow, Color Overlay, Pattern Overlay, Stroke.
Step two:
Make a new layer and merge it with the round rectangle layer from step one.
Go to Filter > Sharpen > Sharpen More. Apply twice.