diff --git a/index.html b/index.html
index 6c4b7e8b..1339c9b6 100644
--- a/index.html
+++ b/index.html
@@ -99,7 +99,7 @@
           <option value="ace/theme/pastel_on_dark">Pastel on dark</option>
           <option value="ace/theme/solarized_dark">Solarized Dark</option>
           <option value="ace/theme/solarized_light">Solarized Light</option>
-          <option value="ace/theme/textmate">TextMate</option>
+          <option value="ace/theme/textmate" selected="selected">TextMate</option>
           <option value="ace/theme/twilight">Twilight</option>
           <option value="ace/theme/vibrant_ink">Vibrant Ink</option>
         </select>
diff --git a/lib/ace/theme/textmate.js b/lib/ace/theme/textmate.js
index 2c43c9dd..1f3e9579 100644
--- a/lib/ace/theme/textmate.js
+++ b/lib/ace/theme/textmate.js
@@ -174,7 +174,7 @@ define(function(require, exports, module) {
 }\
 \
 .ace-tm .ace_marker-layer .ace_active_line {\
-  background: rgb(232, 242, 254);\
+  background: rgba(0, 0, 0, 0.07);\
 }\
 \
 .ace-tm .ace_marker-layer .ace_selected_word {\