Because I use this coloring for absolutely everything. :) Seriously, there is not an icon I have made in the past two months that has not used this coloring, or a variation of it. :) Seriously, I have it memorized. Enjoy!

Go from
 to
in 8 steps using Adobe Photoshop 7.0.
(Sorry; involves Selective Coloring).

Crop, resize, etc.


Go to Image >> Adjustments >> Levels >> RGB.
Enter 0 - 1.40 - 255 into Input.
Enter 0 - 237 into Output.


Go to Image >> Adjustments >> Hue/Saturation >> Yellows.
Set the Saturation to -28.


Go to Image >> Adjustments >> Curves >> RGB.
Make two points and enter the following settings:
Point 1:
Input: 237.
Output: 222.
Point 2:
Input: 200.
Output: 190.


Duplicate your base layer and set it to Soft Light, 38%.


Go to Layer >> New Adjustment Layer >> Selective Color.
Enter the following settings:
Reds: -39, 0, +48, 0.
Yellows: 0, 0, +9, 0.
Neutrals: +5, 0, -6, 0.


Go to Layer >> New Adjustment Layer >> Selective Color.
Enter the following settings:
Neutrals: 0, 0, +6, 0.
Blacks: +13, 0, 0, +6.


Sharpen a bit, add a brush or texture, maybe some text and you're done!
(Although, honestly, I usually don't quit here).


Don't copy exactly, please! Enjoy! :)
Others made with the same, or variations of the same;
  
+ For more Georgie Henley icons, see here. :)