diff --git a/app/common/Telemetry.ts b/app/common/Telemetry.ts
index 33b8f54a..dc9f3085 100644
--- a/app/common/Telemetry.ts
+++ b/app/common/Telemetry.ts
@@ -761,6 +761,10 @@ export const TelemetryContracts: TelemetryContracts = {
         description: 'A timestamp of the most recent update made to a site document.',
         dataType: 'date',
       },
+      earliestDocCreatedAt: {
+        description: 'A timestamp of the earliest non-deleted document creation time.',
+        dataType: 'date',
+      },
     },
   },
   tutorialProgressChanged: {
diff --git a/app/common/ThemePrefs-ti.ts b/app/common/ThemePrefs-ti.ts
index 40a67566..980eb7f7 100644
--- a/app/common/ThemePrefs-ti.ts
+++ b/app/common/ThemePrefs-ti.ts
@@ -137,6 +137,7 @@ export const ThemeColors = t.iface([], {
   "selection-opaque-fg": "string",
   "selection-opaque-bg": "string",
   "selection-opaque-dark-bg": "string",
+  "selection-header": "string",
   "widget-bg": "string",
   "widget-border": "string",
   "widget-active-border": "string",
diff --git a/app/gen-server/lib/Housekeeper.ts b/app/gen-server/lib/Housekeeper.ts
index 1a0d3efb..1dac3cc1 100644
--- a/app/gen-server/lib/Housekeeper.ts
+++ b/app/gen-server/lib/Housekeeper.ts
@@ -186,6 +186,7 @@ export class Housekeeper {
             numWorkspaces: Number(summary.num_workspaces),
             numMembers: Number(summary.num_members),
             lastActivity: summary.last_activity,
+            earliestDocCreatedAt: summary.earliest_doc_created_at,
           },
           full: {
             stripePlanId: summary.stripe_plan_id,
@@ -324,6 +325,7 @@ export class Housekeeper {
       .addSelect('COUNT(DISTINCT workspaces.id)', 'num_workspaces')
       .addSelect('COUNT(DISTINCT org_member_users.id)', 'num_members')
       .addSelect('MAX(docs.updated_at)', 'last_activity')
+      .addSelect('MIN(docs.created_at)', 'earliest_doc_created_at')
       .from(Organization, 'orgs')
       .leftJoin('orgs.workspaces', 'workspaces')
       .leftJoin('workspaces.docs', 'docs')
diff --git a/test/common/Telemetry.ts b/test/common/Telemetry.ts
index ad65805c..48df95c1 100644
--- a/test/common/Telemetry.ts
+++ b/test/common/Telemetry.ts
@@ -23,6 +23,7 @@ describe('Telemetry', function() {
         numWorkspaces: 1,
         numMembers: 1,
         lastActivity: new Date('2022-12-30T01:23:45'),
+        earliestDocCreatedAt: new Date('2022-12-29T00:01:02'),
       }));
       assert.doesNotThrow(() => checker('watchedVideoTour', {
         watchTimeSeconds: 30,
@@ -54,6 +55,7 @@ describe('Telemetry', function() {
         numWorkspaces: 1,
         numMembers: 1,
         lastActivity: new Date('2022-12-30T01:23:45'),
+        earliestDocCreatedAt: new Date('2022-12-29T00:01:02'),
       }));
       assert.doesNotThrow(() => checker('watchedVideoTour', {
         watchTimeSeconds: 30,