diff --git a/gradle.properties b/gradle.properties
index 8699bc12..48938313 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 xhReleaseVersion=4.0-SNAPSHOT
-grailsVersion=3.3.1
-grailsAsyncVersion=3.3.1
-gormVersion=6.1.7.RELEASE
+grailsVersion=3.3.5
+grailsAsyncVersion=3.3.2
+gormVersion=6.1.9.RELEASE
 gradleWrapperVersion=4.6
diff --git a/grails-app/init/io/xh/hoist/BootStrap.groovy b/grails-app/init/io/xh/hoist/BootStrap.groovy
index 7edec5cb..b3b69113 100644
--- a/grails-app/init/io/xh/hoist/BootStrap.groovy
+++ b/grails-app/init/io/xh/hoist/BootStrap.groovy
@@ -141,7 +141,7 @@ class BootStrap {
             ],
             xhTheme: [
                 type: 'string',
-                defaultValue: 'dark',
+                defaultValue: 'light',
                 local: true,
                 note: 'Visual theme for the client application - "light" or "dark".'
             ]
diff --git a/grails-app/services/io/xh/hoist/track/TrackService.groovy b/grails-app/services/io/xh/hoist/track/TrackService.groovy
index fae5c059..3ac655de 100644
--- a/grails-app/services/io/xh/hoist/track/TrackService.groovy
+++ b/grails-app/services/io/xh/hoist/track/TrackService.groovy
@@ -18,9 +18,13 @@ import static io.xh.hoist.browser.Utils.getBrowser
 import static io.xh.hoist.browser.Utils.getDevice
 
 /**
- * Primary service for tracking any activity that an application's admins want to track.
- * Activities are entered into the db's TrackLog table.
- * These are presented to admins in the Admin App's Client Activity > Activity grid.
+ * Service for tracking user activity within the application. This service provides a server-side
+ * API for adding track log entries, while the client-side toolkits provide corresponding APIs
+ * in Javascript. Track log entries are stored within the xh_track_log database table and are
+ * viewable via the Hoist Admin Console 's Client Activity > Activity grid.
+ *
+ * The choice of which activities to track is up to application developers. Typical use-cases
+ * involve logging queries and tracking if / how often a given feature is actually used.
  */
 @CompileStatic
 class TrackService extends BaseService implements EventPublisher {