Beige background for legend/about

app/src/main/java/eu/faircode/email/FragmentAbout.java

@@ -109,6 +109,8 @@ public class FragmentAbout extends FragmentBase {
             llContributors.addView(tv);
         }
 
+        FragmentDialogTheme.setBackground(context, view, false);
+
         return view;
     }
 

app/src/main/java/eu/faircode/email/FragmentLegend.java

@@ -71,6 +71,8 @@ public class FragmentLegend extends FragmentBase {
             }
         }
 
+        FragmentDialogTheme.setBackground(getContext(), view, false);
+
         return view;
     }