Added image-set.

http://cloudfour.com/examples/image-set/

Author: ericwbailey

css/colors and backgrounds/background-image/02-background-image-set.sublime-snippet

@@ -0,0 +1,9 @@
+<snippet>
+	<content><![CDATA[
+background-image: url('../img/$1');
+background-image: image-set(url('../img/$1') 1x, url('../img/$2') 2x);$0
+]]></content>
+	<tabTrigger>baci</tabTrigger>
+	<scope>source.css</scope>
+	<description>background-image: image-set</description>
+</snippet>

css/colors and backgrounds/background-image/02-background-image-none.sublime-snippet renamed to css/colors and backgrounds/background-image/03-background-image-none.sublime-snippet

@@ -0,0 +1,9 @@
+<snippet>
+	<content><![CDATA[
+background-image: url('../img/$1');
+background-image: image-set(url('../img/$1') 1x, url('../img/$2') 2x);$0
+]]></content>
+	<tabTrigger>baci</tabTrigger>
+	<scope>source.scss</scope>
+	<description>background-image: image-set</description>
+</snippet>