Blending Options>Pattern Overlay
The same instrument will be helpful in representing the running indicator of black color:
Using the
Custom Shape Tool (U), we’ll try to picture a part of the button, reserved for the section that would be colored in
#596267 
The layer’s parameters:
Blending Options>Outer Glow 
Applying the
Pencil Tool (B) and the here shown color -
#879095, we’ll try to represent next the pointer’s symbol, situated inside the button.
