How to color gray ressource icons in android (especially microphone)
<p>i'm currently developing an application for android. Therefore i want to create a microphone widget, like the one in googles Searchdialog. This icon is filled with white color, like a bargraph, depending on the recorded volume level.
I already found the icon (ic_btn_speak_now.png) in the drawable ressources, delivered with the SDK. </p>

<p>Unfortunately the icon isn't an simple shape with a transparent area for the microphone shape. Instead it consists of some different gray values. My question now is:</p>

<p>How do the google developers (and others, where i've seen it) fill only the microphone shape of the icon with color?</p>

<p>I hope that one of you has an idea!</p>
