Change notification icons.

[mistyblue17]

First of all, great app. I used HandcentSMS's notifications until I got missed call because of better LED notifications. The only thing I miss from Handcent is the ability to choose different notification icons, such as the style (envelope, chat bubble, "X" for missed call, etc.) and the color. Gmail notifier also has this featue that allows you to change the envelope style and color that pops up in the status bar. I would love it if you could add it to Missed Call. Thanks.