diff --git a/branding/constants/groups.js b/branding/constants/groups.js
new file mode 100644
index 0000000..1c49d3f
--- /dev/null
+++ b/branding/constants/groups.js
@@ -0,0 +1,5 @@
+// this file is duplicated in `backend/src/constants/group.js` and `webapp/constants/group.js`
+export const NAME_LENGTH_MIN = 3
+export const NAME_LENGTH_MAX = 50
+export const DESCRIPTION_WITHOUT_HTML_LENGTH_MIN = 100 // with removed HTML tags
+export const SHOW_GROUP_BUTTON_IN_HEADER = true
diff --git a/branding/constants/logos.js b/branding/constants/logos.js
index 2bea199..714e78a 100644
--- a/branding/constants/logos.js
+++ b/branding/constants/logos.js
@@ -3,6 +3,19 @@
 export default {
   LOGO_HEADER_PATH: '/img/custom/logo-horizontal.svg',
   LOGO_HEADER_WIDTH: '130px',
+  LOGO_HEADER_CLICK: {
+    // externalLink: {
+    //   url: 'https://ocelot.social',
+    //   target: '_blank',
+    // },
+    externalLink: null,
+    internalPath: {
+      to: {
+        name: 'index',
+      },
+      scrollTo: '.main-navigation',
+    },
+  },
   LOGO_SIGNUP_PATH: '/img/custom/logo-squared.svg',
   LOGO_WELCOME_PATH: '/img/custom/logo-squared.svg',
   LOGO_LOGOUT_PATH: '/img/custom/logo-squared.svg',