Use 'pt' instead of 'px' for font sizes

src/app/editor.coffee

@@ -630,7 +630,7 @@ class Editor extends View
 
   setFontSize: (fontSize) ->
     if fontSize
-      @css('font-size', fontSize + 'px')
+      @css('font-size', fontSize + 'pt')
       @calculateDimensions()
       @compositeCursor.updateAppearance()
       @updateVisibleLines()

src/app/root-view.coffee

@@ -28,7 +28,7 @@ class RootView extends View
 
   extensions: null
   extensionStates: null
-  fontSize: 18
+  fontSize: 20
 
   initialize: (pathToOpen) ->
     @extensions = {}

static/atom.css

@@ -4,8 +4,7 @@
 }
 
 body {
-  font-family: Lucida Grande;
-  font-size: 12px;
+  font: 16pt Inconsolata, Monaco, Courier !important;
 }
 
 #root-view {

static/editor.css

@@ -2,7 +2,6 @@
   height: 100%;
   overflow: hidden;
   background: #333;
-  font: 18px Inconsolata, Monaco, Courier;
   color: white;
   cursor: default;
   -webkit-user-select: none;

static/tree-view.css

@@ -6,7 +6,6 @@
   overflow: auto;
   padding: 0 1em;
   cursor: default;
-  font: 16px Inconsolata, Monaco, Courier !important;
   -webkit-user-select: none;
 }