Change application status bar notification color?

[Cole]

I've looked everywhere but cannot find where to change the hex code to make the status bar notification color white.

Can someone please help?

Application (Yap Voicemail):
http://db.tt/yizkv5k

I found the below in am xml file named "new_vm_notification_layout":

<LinearLayout padding="resource_id:0x301" orientation="1" layout_height="-1" layout_width="-1">
</LinearLayout>

Do I edit the resource id?