why android application logo is not coming in 5.0 version?

After updating my device's android version(lollipop), my app's logo is not displaying in lollipop version. and color of action bar has changed.

I am using following theme in my application

android:theme="@android:style/Theme.DeviceDefault.Light"

What would be the issue?

Solution

Umm.. that style is follows device's default style.

If you want same style for all devices, set style like this. android:theme="@android:style/Theme.Holo.Light"

Then you can see style with app logo like as before for all devices & versions.

Or if you want Material style. you might be using Toolbar.