Use the AOSP color for the captive portal app background

Apparently there is no way at all to reference the accent
color of the platform from a mainline module, so this has
to be some fixed color.

Test: manual
Bug: 130844386
Bug: 136636145
Change-Id: I76a9b33b8dc48fbebd8a2f7b7509fec4dda87b9e
1 file changed
tree: 03fc16322a89ce9bb03daebadb3060799ba80c32
  1. assets/
  2. res/
  3. src/
  4. Android.bp
  5. AndroidManifest.xml
  6. OWNERS