Step one:
Create a new layer-set called Fritz mini or the name you want to use, preffered Fritz mini so you wont be confuse.
Create the #313131 case by using the round rectangle tool with a radius of 10 px.
Cut out the top round edges.
Add a gradient layer styles:
Gradient Overlay
Gradient
Blend Mode:Darken Opacity: 39 Gradient: Default Reverse: Check Style: Reflected Aligh with Layer: Check Angle: 0 Scale: 80
Step two:
Create a new layer.
With a 20% white soft brush, draw 2 lines on each side of the case.
Step three:
Create a new layer.
With the round rectangle tool and radius of 40px, draw the middle structure. #717171 is the color code used to make it.
Add the following layer styles:
Outer Glow
Structure
Blend Mode: Normal Opacity: 100 Noise: 0 Color: #000000
Elements
Technique: Precise Spread: 0 Size: 1
Quality
Contour: Default Anti-aliased: Uncheck Range: 1 Jitter: 0
Stroke
Structure
Size: 7 Position: Inside Blend Mode: Normal Opacity: 100
Fill Type: Color
Color: #545454