diff --git a/resources/sprite/conpher_1x/conversation_off.png b/resources/sprite/conpher_1x/conversation_off.png
new file mode 100644
index 0000000000..2a0310bca2
Binary files /dev/null and b/resources/sprite/conpher_1x/conversation_off.png differ
diff --git a/resources/sprite/conpher_1x/conversation_on.png b/resources/sprite/conpher_1x/conversation_on.png
new file mode 100644
index 0000000000..11e8437a0a
Binary files /dev/null and b/resources/sprite/conpher_1x/conversation_on.png differ
diff --git a/resources/sprite/manifest/conph.json b/resources/sprite/manifest/conph.json
index f6cdb6dbb8..9554b39997 100644
--- a/resources/sprite/manifest/conph.json
+++ b/resources/sprite/manifest/conph.json
@@ -1,64 +1,74 @@
 {
   "version" : 1,
   "sprites" : {
-    "conpher_calendar_off" : {
+    "conpher_calendar_off"     : {
       "name" : "conpher_calendar_off",
-      "rule" : "conpher_calendar_off",
+      "rule" : ".conpher_calendar_off",
       "hash" : "a8228ab90fd90f4c2500d9285179bf26"
     },
-    "conpher_calendar_on"  : {
+    "conpher_calendar_on"      : {
       "name" : "conpher_calendar_on",
-      "rule" : "conpher_calendar_on",
+      "rule" : ".conpher_calendar_on, .device-desktop .conpher_calendar_off:hover ",
       "hash" : "931243bc3c414782ddb2d1d9607908ba"
     },
-    "conpher_files_off"    : {
+    "conpher_conversation_off" : {
+      "name" : "conpher_conversation_off",
+      "rule" : ".conpher_conversation_off",
+      "hash" : "931abb0377898297a9a603a6d280b977"
+    },
+    "conpher_conversation_on"  : {
+      "name" : "conpher_conversation_on",
+      "rule" : ".conpher_conversation_on, .device-desktop .conpher_conversation_off:hover ",
+      "hash" : "0b8a39dc5019dac1975b7be2ca0ccbfa"
+    },
+    "conpher_files_off"        : {
       "name" : "conpher_files_off",
-      "rule" : "conpher_files_off",
+      "rule" : ".conpher_files_off",
       "hash" : "de1aee01b9b47b354e6ac280ae68bae1"
     },
-    "conpher_files_on"     : {
+    "conpher_files_on"         : {
       "name" : "conpher_files_on",
-      "rule" : "conpher_files_on",
+      "rule" : ".conpher_files_on, .device-desktop .conpher_files_off:hover ",
       "hash" : "9ccbbd5e86fd4ec87a11aee0c9ec8c60"
     },
-    "conpher_list_off"     : {
+    "conpher_list_off"         : {
       "name" : "conpher_list_off",
-      "rule" : "conpher_list_off",
+      "rule" : ".conpher_list_off",
       "hash" : "2611311d0c2aec04416433be74d3a30e"
     },
-    "conpher_list_on"      : {
+    "conpher_list_on"          : {
       "name" : "conpher_list_on",
-      "rule" : "conpher_list_on",
+      "rule" : ".conpher_list_on, .device-desktop .conpher_list_off:hover ",
       "hash" : "cee6de0301c84b0d195282642642afa0"
     },
-    "conpher_more_off"     : {
+    "conpher_more_off"         : {
       "name" : "conpher_more_off",
-      "rule" : "conpher_more_off",
+      "rule" : ".conpher_more_off",
       "hash" : "3b7099bdde20a13864b48552b11e92c3"
     },
-    "conpher_more_on"      : {
+    "conpher_more_on"          : {
       "name" : "conpher_more_on",
-      "rule" : "conpher_more_on",
+      "rule" : ".conpher_more_on, .device-desktop .conpher_more_off:hover ",
       "hash" : "b146f0cff9c2e5f0b57f7ebcfe0704d3"
     },
-    "conpher_people_off"   : {
+    "conpher_people_off"       : {
       "name" : "conpher_people_off",
-      "rule" : "conpher_people_off",
+      "rule" : ".conpher_people_off",
       "hash" : "641a6a21aa32a12416e85caf8a22e340"
     },
-    "conpher_people_on"    : {
+    "conpher_people_on"        : {
       "name" : "conpher_people_on",
-      "rule" : "conpher_people_on",
+      "rule" : ".conpher_people_on, .device-desktop .conpher_people_off:hover ",
       "hash" : "f13745fd7036564eefb1c0ebc3502a92"
     },
-    "conpher_settings_off" : {
+    "conpher_settings_off"     : {
       "name" : "conpher_settings_off",
-      "rule" : "conpher_settings_off",
+      "rule" : ".conpher_settings_off",
       "hash" : "aa9ab000d9e33e3c50c2fe70367f30b4"
     },
-    "conpher_settings_on"  : {
+    "conpher_settings_on"      : {
       "name" : "conpher_settings_on",
-      "rule" : "conpher_settings_on",
+      "rule" : ".conpher_settings_on, .device-desktop .conpher_settings_off:hover ",
       "hash" : "a5fe22965997f9559800ca7db5ea32c8"
     }
   },
diff --git a/src/__celerity_resource_map__.php b/src/__celerity_resource_map__.php
index 158c033447..47dff6fcbe 100644
--- a/src/__celerity_resource_map__.php
+++ b/src/__celerity_resource_map__.php
@@ -478,15 +478,15 @@ celerity_register_resource_map(array(
   ),
   '/rsrc/image/sprite-conph-X2.png' =>
   array(
-    'hash' => 'c80e0b09360be71addfeaee622ac4bf0',
-    'uri' => '/res/c80e0b09/rsrc/image/sprite-conph-X2.png',
+    'hash' => '8f79b9888577dab95d6019d1b7f2a204',
+    'uri' => '/res/8f79b988/rsrc/image/sprite-conph-X2.png',
     'disk' => '/rsrc/image/sprite-conph-X2.png',
     'type' => 'png',
   ),
   '/rsrc/image/sprite-conph.png' =>
   array(
-    'hash' => '0b1d46b6c7369e09dc4b9e26010b74d6',
-    'uri' => '/res/0b1d46b6/rsrc/image/sprite-conph.png',
+    'hash' => 'a6329b4baa648b57c00de65f6758cbd2',
+    'uri' => '/res/a6329b4b/rsrc/image/sprite-conph.png',
     'disk' => '/rsrc/image/sprite-conph.png',
     'type' => 'png',
   ),
@@ -3316,7 +3316,7 @@ celerity_register_resource_map(array(
   ),
   'sprite-conpher-css' =>
   array(
-    'uri' => '/res/14e5d74c/rsrc/css/sprite-conph.css',
+    'uri' => '/res/f640f0c5/rsrc/css/sprite-conph.css',
     'type' => 'css',
     'requires' =>
     array(
diff --git a/src/infrastructure/celerity/CeleritySpriteGenerator.php b/src/infrastructure/celerity/CeleritySpriteGenerator.php
index bc25743b83..4f9f4f26b7 100644
--- a/src/infrastructure/celerity/CeleritySpriteGenerator.php
+++ b/src/infrastructure/celerity/CeleritySpriteGenerator.php
@@ -194,7 +194,14 @@ final class CeleritySpriteGenerator {
       $sprite = id(clone $template)
         ->setName($prefix.$icon);
 
-      $sprite->setTargetCSS($prefix.$icon);
+      $tcss = array();
+      $tcss[] = '.'.$prefix.$icon;
+      if ($color == 'on') {
+        $class = str_replace('_on', '_off', $prefix.$icon);
+        $tcss[] = '.device-desktop .'.$class.':hover ';
+      }
+
+      $sprite->setTargetCSS(implode(', ', $tcss));
 
       foreach ($scales as $scale_key => $scale) {
         $path = $this->getPath($prefix.$scale_key.'/'.$icon.'.png');
diff --git a/webroot/rsrc/css/sprite-conph.css b/webroot/rsrc/css/sprite-conph.css
index 6b02619ebf..d11ae477c5 100644
--- a/webroot/rsrc/css/sprite-conph.css
+++ b/webroot/rsrc/css/sprite-conph.css
@@ -13,55 +13,63 @@ only screen and (min-device-pixel-ratio: 1.5),
 only screen and (-webkit-min-device-pixel-ratio: 1.5) {
   .sprite-conpher {
     background-image: url(/rsrc/image/sprite-conpher-X2.png);
-    background-size: 99px 132px;
+    background-size: 132px 132px;
   }
 }
 
 
-conpher_calendar_off {
+.conpher_calendar_off {
   background-position: 0px 0px;
 }
 
-conpher_calendar_on {
+.conpher_calendar_on, .device-desktop .conpher_calendar_off:hover  {
   background-position: -33px 0px;
 }
 
-conpher_files_off {
+.conpher_conversation_off {
   background-position: -66px 0px;
 }
 
-conpher_files_on {
+.conpher_conversation_on, .device-desktop .conpher_conversation_off:hover  {
+  background-position: -99px 0px;
+}
+
+.conpher_files_off {
   background-position: 0px -33px;
 }
 
-conpher_list_off {
+.conpher_files_on, .device-desktop .conpher_files_off:hover  {
   background-position: -33px -33px;
 }
 
-conpher_list_on {
+.conpher_list_off {
   background-position: -66px -33px;
 }
 
-conpher_more_off {
+.conpher_list_on, .device-desktop .conpher_list_off:hover  {
+  background-position: -99px -33px;
+}
+
+.conpher_more_off {
   background-position: 0px -66px;
 }
 
-conpher_more_on {
+.conpher_more_on, .device-desktop .conpher_more_off:hover  {
   background-position: -33px -66px;
 }
 
-conpher_people_off {
+.conpher_people_off {
   background-position: -66px -66px;
 }
 
-conpher_people_on {
+.conpher_people_on, .device-desktop .conpher_people_off:hover  {
   background-position: 0px -99px;
 }
 
-conpher_settings_off {
+.conpher_settings_off {
   background-position: -33px -99px;
 }
 
-conpher_settings_on {
+.conpher_settings_on, .device-desktop .conpher_settings_off:hover  {
   background-position: -66px -99px;
 }
diff --git a/webroot/rsrc/image/sprite-conph-X2.png b/webroot/rsrc/image/sprite-conph-X2.png
index df789c68ef..ef32a410db 100644
Binary files a/webroot/rsrc/image/sprite-conph-X2.png and b/webroot/rsrc/image/sprite-conph-X2.png differ
diff --git a/webroot/rsrc/image/sprite-conph.png b/webroot/rsrc/image/sprite-conph.png
index 41d186ef5a..490f12d2c5 100644
Binary files a/webroot/rsrc/image/sprite-conph.png and b/webroot/rsrc/image/sprite-conph.png differ