1. first open photoshop and open the image u want to change the color of.


2. then it will open


3. then choose the rectangular marquee tool, and go over ur icon.


4. then either choose edit>fill, or shift+backspace.


5. then this box will pop up.


6. makesure that "use" is on color.


7. i will choose black.


8. and "mode" is on normal.


9. and opacity is on however dark u want the color to be, i choose 95%. and always remember to check the preserve transparency box.


10. then the image should look something like this:

and ur done, hope i helped.

nice.