Add color enhancer as a chromium accessibility extensions.

ui/accessibility/extensions/strings/accessibility_extensions_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- Strings for all extensions.  Each message should be named with the
      name of the extension as a prefix, e.g. IDS_ALT_APP_NAME. -->
 
 <grit base_dir="." current_release="1" enc_check="möl" latest_public_release="0" source_lang_id="en">
   <outputs>
     <output filename="_locales/am/messages.json" type="chrome_messages_json" lang="am"/>
     <output filename="_locales/ar/messages.json" type="chrome_messages_json" lang="ar"/>
     <output filename="_locales/bg/messages.json" type="chrome_messages_json" lang="bg"/>
@@ skipping 241 matching lines @@
       <message desc="More text at the top of the options page, explaining that Caret Browsing (the name of this extension) is enabled on this page and the user can try it." name="IDS_CARET_BROWSING_SUBHEADING2">
         Try it out now - Caret Browsing is always enabled on this page!
       </message>
       <message desc="Heading text for the part of the options page that lets the user choose options for how the caret is shown visually." name="IDS_CARET_BROWSING_VISUALFEEDBACK">
         Visual Feedback
       </message>
       <message desc="Subheading in the options page where the user chooses what to show visually when this feature (Caret Browsing) is enabled." name="IDS_CARET_BROWSING_WHENENABLED">
         When Caret Browsing is enabled:
       </message>
 
+      <!-- Color Enhancer extension -->
+
+      <message desc="The title of the application, displayed in the web store." name="IDS_COLOR_ENHANCER_APPNAME">
+        Color Vision Enhancer
+      </message>
+      <message desc="The description of the application, displayed in the web store." name="IDS_COLOR_ENHANCER_APPDESC">
+        A customizable color filter applied to webpages to improve color perception.
+      </message>
+      <message desc="Title for a slider that determines how much to rotate the color space." name="IDS_COLOR_ENHANCER_ADJUSTMENT_FACTOR">
+        Adjustment Factor
+      </message>
+      <message desc="Title for a slider that determines by how much the color should be filtered." name="IDS_COLOR_ENHANCER_DEGREE">
+        Degree
+      </message>
+      <message desc="Title for a dropdown selecting between colors to enhance." name="IDS_COLOR_ENHANCER_TYPE_CHOICE">
+        Improve perception for:
+      </message>
+      <message desc="Choice to enhancing the red color." name="IDS_COLOR_ENHANCER_TYPE_RED">
+        Red
+      </message>
+      <message desc="Choice to enhancing the green color." name="IDS_COLOR_ENHANCER_TYPE_GREEN">
+        Green
+      </message>
+      <message desc="Choice to enhancing the blue color." name="IDS_COLOR_ENHANCER_TYPE_BLUE">
+        Blue
+      </message>
+      <message desc="Title for button that will apply these settings to all currently open websites." name="IDS_COLOR_ENHANCER_RESET">
+        Reset all sites
+      </message>
+
     </messages>
   </release>
 </grit>