Notification Icons in Android 5.0

Created by: SecUpwN

As mentioned by @tobykurien, all notification Icons should be white-on-transparent with no alpha-blending and we should use differently-shaped icons rather than differently-coloured icons for the status. The complete specifications are to be found in the Android 5.0 Notification Documentation.

New in Android 5.0

In Android 5.0, notifications receive important updates: structurally, visually, and functionally:

• Notifications have undergone visual changes consistent with the new material design theme.
• Notifications are now available on the device lock screen, while sensitive content can still be hidden behind it.
• High-priority notifications received while the device is in use now use a new format called heads-up notifications.
• Cloud-synced notifications: Dismissing a notification on one of your Android devices dismisses it on the others, as well.

To make my point clear here: I LOVE the work that has been done by @SgtObst and would like to avoid destroying it, just because goofy Google is changing its design with like every f*cking Android version out there. What about consistency of interaction design for our users? Learning how to use our App.. again?

Furthermore, this proposal has been made during me reworking all Icons to be in crisp and high quality, initiated by #160 (closed). I'm still not done and really don't know how much any Icons would change if we respect the guidelines for Android 5.0. @tobykurien, please take a minute to clarify that to me. Thank you.