diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 77af671..e54539f 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -223,26 +223,32 @@
         <!-- File that contains the specs for the workspace.
         Needs FeatureFlags.ENABLE_RESPONSIVE_WORKSPACE enabled -->
         <attr name="workspaceSpecsId" format="reference" />
+        <!-- defaults to workspaceSpecsId, if not specified -->
         <attr name="workspaceSpecsTwoPanelId" format="reference" />
         <!-- File that contains the specs for all apps.
         Needs FeatureFlags.ENABLE_RESPONSIVE_WORKSPACE enabled -->
         <attr name="allAppsSpecsId" format="reference" />
+        <!-- defaults to allAppsSpecsId, if not specified -->
         <attr name="allAppsSpecsTwoPanelId" format="reference" />
         <!-- File that contains the specs for the workspace.
         Needs FeatureFlags.ENABLE_RESPONSIVE_WORKSPACE enabled -->
         <attr name="folderSpecsId" format="reference" />
+        <!-- defaults to folderSpecsId, if not specified -->
         <attr name="folderSpecsTwoPanelId" format="reference" />
         <!-- File that contains the specs for hotseat bar.
         Needs FeatureFlags.ENABLE_RESPONSIVE_WORKSPACE enabled -->
         <attr name="hotseatSpecsId" format="reference" />
+        <!-- defaults to hotseatSpecsId, if not specified -->
         <attr name="hotseatSpecsTwoPanelId" format="reference" />
         <!-- File that contains the specs for workspace icon and text size.
         Needs FeatureFlags.ENABLE_RESPONSIVE_WORKSPACE enabled -->
         <attr name="workspaceCellSpecsId" format="reference" />
+        <!-- defaults to workspaceCellSpecsId, if not specified -->
         <attr name="workspaceCellSpecsTwoPanelId" format="reference" />
         <!-- File that contains the specs for all apps icon and text size.
         Needs FeatureFlags.ENABLE_RESPONSIVE_WORKSPACE enabled -->
         <attr name="allAppsCellSpecsId" format="reference" />
+        <!-- defaults to allAppsCellSpecsId, if not specified -->
         <attr name="allAppsCellSpecsTwoPanelId" format="reference" />
 
         <!-- By default all categories are enabled -->
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 78c12e5..42d4d50 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -948,34 +948,34 @@
                         R.styleable.GridDisplayOption_workspaceSpecsId, INVALID_RESOURCE_HANDLE);
                 mWorkspaceSpecsTwoPanelId = a.getResourceId(
                         R.styleable.GridDisplayOption_workspaceSpecsTwoPanelId,
-                        INVALID_RESOURCE_HANDLE);
+                        mWorkspaceSpecsId);
                 mAllAppsSpecsId = a.getResourceId(
                         R.styleable.GridDisplayOption_allAppsSpecsId, INVALID_RESOURCE_HANDLE);
                 mAllAppsSpecsTwoPanelId = a.getResourceId(
                         R.styleable.GridDisplayOption_allAppsSpecsTwoPanelId,
-                        INVALID_RESOURCE_HANDLE);
+                        mAllAppsSpecsId);
                 mFolderSpecsId = a.getResourceId(
                         R.styleable.GridDisplayOption_folderSpecsId, INVALID_RESOURCE_HANDLE);
                 mFolderSpecsTwoPanelId = a.getResourceId(
                         R.styleable.GridDisplayOption_folderSpecsTwoPanelId,
-                        INVALID_RESOURCE_HANDLE);
+                        mFolderSpecsId);
                 mHotseatSpecsId = a.getResourceId(
                         R.styleable.GridDisplayOption_hotseatSpecsId, INVALID_RESOURCE_HANDLE);
                 mHotseatSpecsTwoPanelId = a.getResourceId(
                         R.styleable.GridDisplayOption_hotseatSpecsTwoPanelId,
-                        INVALID_RESOURCE_HANDLE);
+                        mHotseatSpecsId);
                 mWorkspaceCellSpecsId = a.getResourceId(
                         R.styleable.GridDisplayOption_workspaceCellSpecsId,
                         INVALID_RESOURCE_HANDLE);
                 mWorkspaceCellSpecsTwoPanelId = a.getResourceId(
                         R.styleable.GridDisplayOption_workspaceCellSpecsTwoPanelId,
-                        INVALID_RESOURCE_HANDLE);
+                        mWorkspaceCellSpecsId);
                 mAllAppsCellSpecsId = a.getResourceId(
                         R.styleable.GridDisplayOption_allAppsCellSpecsId,
                         INVALID_RESOURCE_HANDLE);
                 mAllAppsCellSpecsTwoPanelId = a.getResourceId(
                         R.styleable.GridDisplayOption_allAppsCellSpecsTwoPanelId,
-                        INVALID_RESOURCE_HANDLE);
+                        mAllAppsCellSpecsId);
                 mNumAllAppsRowsForCellHeightCalculation = a.getInt(
                         R.styleable.GridDisplayOption_numAllAppsRowsForCellHeightCalculation,
                         numRows);