diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -9,7 +9,7 @@
   'names' => array(
     'conpherence.pkg.css' => 'e25569a9',
     'conpherence.pkg.js' => '6249a1cf',
-    'core.pkg.css' => '7cd6d9cb',
+    'core.pkg.css' => 'cbcffe46',
     'core.pkg.js' => '1fa7c0c5',
     'darkconsole.pkg.js' => 'e7393ebb',
     'differential.pkg.css' => '4815647b',
@@ -29,7 +29,7 @@
     'rsrc/css/aphront/phabricator-nav-view.css' => 'b29426e9',
     'rsrc/css/aphront/table-view.css' => '213a5981',
     'rsrc/css/aphront/tokenizer.css' => '9a8cb501',
-    'rsrc/css/aphront/tooltip.css' => '8f9faa9a',
+    'rsrc/css/aphront/tooltip.css' => '173b9431',
     'rsrc/css/aphront/typeahead-browse.css' => '8904346a',
     'rsrc/css/aphront/typeahead.css' => 'd4f16145',
     'rsrc/css/application/almanac/almanac.css' => 'dbb9b3af',
@@ -553,7 +553,7 @@
     'aphront-panel-view-css' => '8427b78d',
     'aphront-table-view-css' => '213a5981',
     'aphront-tokenizer-control-css' => '9a8cb501',
-    'aphront-tooltip-css' => '8f9faa9a',
+    'aphront-tooltip-css' => '173b9431',
     'aphront-typeahead-control-css' => 'd4f16145',
     'application-search-view-css' => '20ae9d85',
     'auth-css' => '0877ed6e',
diff --git a/webroot/rsrc/css/aphront/tooltip.css b/webroot/rsrc/css/aphront/tooltip.css
--- a/webroot/rsrc/css/aphront/tooltip.css
+++ b/webroot/rsrc/css/aphront/tooltip.css
@@ -37,9 +37,10 @@
 }
 
 .jx-tooltip {
-  color: #f9f9f9;
+  color: #fff;
   font-size: {$normalfontsize};
   -webkit-font-smoothing: antialiased;
+  font-weight: bold;
   padding: 6px 8px;
   overflow: hidden;
   white-space: pre-wrap;