zumo_2.0_android/app/src/main/res/values/dimens.xml

<resources>
  <!-- Default screen margins, per the Android Design guidelines. -->
  <dimen name="activity_horizontal_margin">16dp</dimen>
  <dimen name="activity_vertical_margin">16dp</dimen>
  <dimen name="fab_margin">22dp</dimen>
  <dimen name="action_bar_height">52dp</dimen>
  <dimen name="main_contents_weather_margin_top">90dp</dimen>  <!--38dp + 52dp-->
  <dimen name="main_contents_start_gap">57dp</dimen>
  <dimen name="main_contents_image_width">285dp</dimen>
  <dimen name="main_contents_image_height">328dp</dimen>

</resources>