update mac stuff, added mac menu icon.

1 files changed, 35 insertions, 2 deletions

diff --git a/README.md b/README.md
index 3ba76da..e1e7d55 100644
--- a/README.md
+++ b/README.md
@@ -17,9 +17,12 @@ Usage:
     cd leap_assets
     rake
 
-Android Launcher Icons
+Android Icons
 =====================================
 
+Android Launcher Icons
+-------------------------------------
+
 See https://developer.android.com/guide/practices/ui_guidelines/icon_design_launcher.html
 
 Pixels height and width for launcher icons:
@@ -35,7 +38,7 @@ Links:
 * Android Launcher Icon Guidelines -- https://developer.android.com/guide/practices/ui_guidelines/icon_design_launcher.html
 
 Android Action Bar Icons
-====================================
+-----------------------------------
 
 See https://developer.android.com/guide/practices/ui_guidelines/icon_design_action_bar.html
 
@@ -44,6 +47,36 @@ See https://developer.android.com/guide/practices/ui_guidelines/icon_design_acti
 36x36   -- mdpi, 240 dpi, High density screen
 48x48   -- xhdpi, 320 dpi, Extra-high density screen
 
+Mac OS Icons
+====================================
+
+NSStatusItem Icons
+------------------------------------
+
+See: http://alastairs-place.net/blog/2013/07/23/nsstatusitem-what-size-should-your-icon-be/
+
+Normal displays:
+  21px height, but should include 3px space at the top and bottom of the icon
+  in order to look in line with the system icons.
+  The icon can be up to 22px wide (no space is needed).
+
+Retina displays:
+  41px height, but should include a 6px space at the top and a 5px space at
+  the bottom in order to look in line with the system icons.
+  The icon can be up to 44px wide (no space is needed).
+
+The empty space on the top and the bottom is not required, and is flexible. It
+still looks fine if a few pixels poke into this space, and even some system
+icons do this.
+
+Unlike in the past, the Mac menu bar can now be light or dark colored, so the
+icon should look good on both backgrounds.
+
+Application Icons
+------------------------------------
+
+App icons must be 1024×1024 for the app to be accepted in the Mac App Store.
+
 Resources
 =====================