4 files changed, 34 insertions, 2 deletions

diff --git a/server/initializers/checker-before-init.ts b/server/initializers/checker-before-init.ts
index 1f5ec20df..c94bca2f8 100644
--- a/server/initializers/checker-before-init.ts
+++ b/server/initializers/checker-before-init.ts
@@ -29,7 +29,8 @@ function checkMissedConfig () {
     'followers.instance.enabled', 'followers.instance.manual_approval',
     'tracker.enabled', 'tracker.private', 'tracker.reject_too_many_announces',
     'history.videos.max_age', 'views.videos.remote.max_age',
-    'rates_limit.login.window', 'rates_limit.login.max', 'rates_limit.ask_send_email.window', 'rates_limit.ask_send_email.max'
+    'rates_limit.login.window', 'rates_limit.login.max', 'rates_limit.ask_send_email.window', 'rates_limit.ask_send_email.max',
+    'theme.default'
   ]
   const requiredAlternatives = [
     [ // set
diff --git a/server/initializers/config.ts b/server/initializers/config.ts
index 6737edcd6..dfc4bea21 100644
--- a/server/initializers/config.ts
+++ b/server/initializers/config.ts
@@ -224,6 +224,9 @@ const CONFIG = {
       get ENABLED () { return config.get<boolean>('followers.instance.enabled') },
       get MANUAL_APPROVAL () { return config.get<boolean>('followers.instance.manual_approval') }
     }
+  },
+  THEME: {
+    get DEFAULT () { return config.get<string>('theme.default') }
   }
 }
 
diff --git a/server/initializers/constants.ts b/server/initializers/constants.ts
index 8ceefbd0e..9d61ed537 100644
--- a/server/initializers/constants.ts
+++ b/server/initializers/constants.ts
@@ -14,7 +14,7 @@ import { CONFIG, registerConfigChangedHandler } from './config'
 
 // ---------------------------------------------------------------------------
 
-const LAST_MIGRATION_VERSION = 395
+const LAST_MIGRATION_VERSION = 400
 
 // ---------------------------------------------------------------------------
 
@@ -585,6 +585,8 @@ const P2P_MEDIA_LOADER_PEER_VERSION = 2
 const PLUGIN_GLOBAL_CSS_FILE_NAME = 'plugins-global.css'
 const PLUGIN_GLOBAL_CSS_PATH = join(CONFIG.STORAGE.TMP_DIR, PLUGIN_GLOBAL_CSS_FILE_NAME)
 
+const DEFAULT_THEME = 'default'
+
 // ---------------------------------------------------------------------------
 
 // Special constants for a test instance
@@ -667,6 +669,7 @@ export {
   HLS_STREAMING_PLAYLIST_DIRECTORY,
   FEEDS,
   JOB_TTL,
+  DEFAULT_THEME,
   NSFW_POLICY_TYPES,
   STATIC_MAX_AGE,
   STATIC_PATHS,
diff --git a/server/initializers/migrations/0400-user-theme.ts b/server/initializers/migrations/0400-user-theme.ts
new file mode 100644
index 000000000..2c1763890
--- /dev/null
+++ b/server/initializers/migrations/0400-user-theme.ts
@@ -0,0 +1,25 @@
+import * as Sequelize from 'sequelize'
+
+async function up (utils: {
+  transaction: Sequelize.Transaction,
+  queryInterface: Sequelize.QueryInterface,
+  sequelize: Sequelize.Sequelize,
+  db: any
+}): Promise<void> {
+  const data = {
+    type: Sequelize.STRING,
+    allowNull: false,
+    defaultValue: 'default'
+  }
+
+  await utils.queryInterface.addColumn('user', 'theme', data)
+}
+
+function down (options) {
+  throw new Error('Not implemented.')
+}
+
+export {
+  up,
+  down
+}