[CRD iOS] Add the host setup instruction page

remoting/ios/app/remoting_theme.mm

Index: remoting/ios/app/remoting_theme.mm
diff --git a/remoting/ios/app/remoting_theme.mm b/remoting/ios/app/remoting_theme.mm
index fde5c9ae68e1535edb5ee271a04d0c42a620f22d..16f08cc859365e2b2db826c718313b85512d5aa7 100644
--- a/remoting/ios/app/remoting_theme.mm
+++ b/remoting/ios/app/remoting_theme.mm
@@ -46,7 +46,7 @@
   static UIColor* color;
   static dispatch_once_t onceToken;
   dispatch_once(&onceToken, ^{
-    color = [UIColor colorWithRed:0.75f green:0.75f blue:0.75f alpha:1.f];
+    color = [UIColor colorWithWhite:0.87f alpha:1.f];
   });
   return color;
 }
@@ -55,7 +55,16 @@
   static UIColor* color;
   static dispatch_once_t onceToken;
   dispatch_once(&onceToken, ^{
-    color = [UIColor colorWithRed:0.20f green:0.70f blue:0.20f alpha:1.f];
+    color = [UIColor colorWithRed:0.40f green:0.75f blue:0.40f alpha:1.f];

[nicholss, 2017/06/27 16:36:02]

Oh good, you got rid of that horrible green color :)

[Yuwei, 2017/06/27 20:46:45]

This is basically to get rid of the opacity setting. Not sure whether it still
looks horrible though X_X

+  });
+  return color;
+}
+
++ (UIColor*)setupListBackgroundColor {
+  static UIColor* color;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    color = [UIColor colorWithWhite:1.f alpha:0.9f];
   });
   return color;
 }