Though this answer is from the internet, I find it very useful. It is fastest way of changing icon colors in your desired color.
- Make sure the color mode is RGB. …
- Make sure you have the Layers palette on screen. …
- Click Fx icon for effects.
- From Effects menu, choose Color overlay. …
- Click the color box.
- In the color dialog, choose the desired color.
- Press OK in all dialog boxes. …
- Make sure file preset is PNG-24.