Improve the scrim on the cover card

Use a translucent wallpaper and black header text, as well
as always use a bottom scrim to ensure the QSB is fully
visible as well as the "Tap to edit" button

Bug: 131296977
Change-Id: I6bca899065919812e5771f5e60e0864169f25098
8 files changed
tree: e3cfa571cdee911617c172ea5631512f220c8356
  1. res/
  2. robolectric_tests/
  3. src/
  4. src_override/
  5. Android.mk
  6. AndroidManifest.xml