What should be the default launcher icon size
<p>I refer to the documentation at <a href="http://developer.android.com/guide/practices/ui_guidelines/icon_design.html#icon-sets">http://developer.android.com/guide/practices/ui_guidelines/icon_design.html#icon-sets</a></p>

<p>Hence, I plan to have the following directory structures.</p>

<pre><code>res/
    drawable/   
        icon.png (? x ? px)
    drawable-ldpi/  
        icon.png (36x36 px)
    drawable-mdpi/  
        icon.png (48x48 px)
    drawable-hdpi/  
        icon.png (72x72 px)
</code></pre>

<p>However, I cannot find any documentation, to mention the size of default launcher icon size.</p>

<p>May I know what should be the default launcher icon size?</p>
