diff --git a/Gemfile.lock b/Gemfile.lock
index ddd96df61..ecd21540d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -105,7 +105,7 @@ GEM
       xcodeproj (>= 1.13.0, < 2.0.0)
       xcpretty (~> 0.3.0)
       xcpretty-travis-formatter (>= 0.0.3)
-    fastlane-plugin-versioning_android (0.1.0)
+    fastlane-plugin-versioning_android (0.1.1)
     gh_inspector (1.1.3)
     google-apis-androidpublisher_v3 (0.46.0)
       google-apis-core (>= 0.11.0, < 2.a)
diff --git a/app/src/free/res/drawable/ic_app_white_24dp.xml b/app/src/free/res/drawable/ic_app_key_white_24dp.xml
similarity index 85%
rename from app/src/free/res/drawable/ic_app_white_24dp.xml
rename to app/src/free/res/drawable/ic_app_key_white_24dp.xml
index 65a6570fb..0422e8f07 100644
--- a/app/src/free/res/drawable/ic_app_white_24dp.xml
+++ b/app/src/free/res/drawable/ic_app_key_white_24dp.xml
@@ -7,10 +7,6 @@
   <group
       android:translateX="-12"
       android:translateY="-12">
-    <path
-        android:fillColor="#ffa726"
-        android:strokeWidth="1.99999297"
-        android:pathData="M36,36 L36,40.2422 L67.7578,72 L72,72 L72,67.7578 L40.2422,36 Z" />
     <path
         android:fillColor="#ffffff"
         android:strokeWidth="1.99999297"
diff --git a/app/src/free/res/drawable/ic_app_lock_white_24dp.xml b/app/src/free/res/drawable/ic_app_lock_white_24dp.xml
new file mode 100644
index 000000000..90fb4212e
--- /dev/null
+++ b/app/src/free/res/drawable/ic_app_lock_white_24dp.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="84"
+    android:viewportHeight="84">
+  <group
+      android:translateX="-12"
+      android:translateY="-12">
+    <path
+        android:fillColor="#ffffff"
+        android:strokeWidth="1.99999297"
+        android:pathData="M36,36 L36,40.2422 L67.7578,72 L72,72 L72,67.7578 L40.2422,36 Z" />
+  </group>
+</vector>
diff --git a/app/src/libre/res/drawable/ic_app_white_24dp.xml b/app/src/libre/res/drawable/ic_app_key_white_24dp.xml
similarity index 86%
rename from app/src/libre/res/drawable/ic_app_white_24dp.xml
rename to app/src/libre/res/drawable/ic_app_key_white_24dp.xml
index 151fdf424..16a870700 100644
--- a/app/src/libre/res/drawable/ic_app_white_24dp.xml
+++ b/app/src/libre/res/drawable/ic_app_key_white_24dp.xml
@@ -7,10 +7,6 @@
   <group
       android:translateX="-12"
       android:translateY="-12">
-    <path
-        android:fillColor="#ffa726"
-        android:strokeWidth="1.99999297"
-        android:pathData="M36,36 L36,40.2422 L67.7578,72 L72,72 L72,67.7578 L40.2422,36 Z" />
     <path
         android:fillColor="#ffffff"
         android:strokeWidth="1.99999297"
diff --git a/app/src/libre/res/drawable/ic_app_lock_white_24dp.xml b/app/src/libre/res/drawable/ic_app_lock_white_24dp.xml
new file mode 100644
index 000000000..90fb4212e
--- /dev/null
+++ b/app/src/libre/res/drawable/ic_app_lock_white_24dp.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="84"
+    android:viewportHeight="84">
+  <group
+      android:translateX="-12"
+      android:translateY="-12">
+    <path
+        android:fillColor="#ffffff"
+        android:strokeWidth="1.99999297"
+        android:pathData="M36,36 L36,40.2422 L67.7578,72 L72,72 L72,67.7578 L40.2422,36 Z" />
+  </group>
+</vector>
diff --git a/app/src/main/res/layout/activity_file_selection.xml b/app/src/main/res/layout/activity_file_selection.xml
index 3e62a8acd..5c5ec27ba 100644
--- a/app/src/main/res/layout/activity_file_selection.xml
+++ b/app/src/main/res/layout/activity_file_selection.xml
@@ -73,7 +73,7 @@
                         android:shadowDy="2"
                         android:shadowRadius="2"
                         android:paddingTop="?attr/actionBarSize"
-                        android:textColor="@color/green_light"
+                        android:textColor="?attr/colorPrimaryContainer"
                         android:gravity="center"
                         android:text="@string/app_name_part1"/>
                     <TextView
@@ -89,7 +89,7 @@
                         android:shadowDy="2"
                         android:shadowRadius="2"
                         android:paddingTop="?attr/actionBarSize"
-                        android:textColor="@color/orange"
+                        android:textColor="?attr/colorSecondary"
                         android:gravity="center"
                         android:text="@string/app_name_part2"/>
                     <TextView
@@ -107,7 +107,7 @@
                         android:shadowDy="2"
                         android:shadowRadius="2"
                         android:paddingTop="?attr/actionBarSize"
-                        android:textColor="@color/green_lightest"
+                        android:textColor="?attr/colorSurfaceContainerLowest"
                         android:gravity="center"
                         android:text="@string/app_name_part3"/>
                 </LinearLayout>
diff --git a/app/src/main/res/layout/activity_main_credential.xml b/app/src/main/res/layout/activity_main_credential.xml
index ca9b4b0a2..23c5175f2 100644
--- a/app/src/main/res/layout/activity_main_credential.xml
+++ b/app/src/main/res/layout/activity_main_credential.xml
@@ -67,9 +67,19 @@
                         android:layout_margin="12dp"
                         android:contentDescription="@string/about"
                         android:elevation="4dp"
-                        android:src="@drawable/ic_app_white_24dp"
+                        android:src="@drawable/ic_app_lock_white_24dp"
+                        app:tint="?attr/colorSecondary"
                         android:background="@drawable/background_image"
-                        android:backgroundTint="@color/green"/>
+                        app:backgroundTint="?attr/colorPrimaryContainer"/>
+                    <androidx.appcompat.widget.AppCompatImageView
+                        android:layout_width="48dp"
+                        android:layout_height="48dp"
+                        android:layout_gravity="center"
+                        android:layout_margin="12dp"
+                        android:contentDescription="@string/about"
+                        android:elevation="4dp"
+                        android:src="@drawable/ic_app_key_white_24dp"
+                        app:tint="?attr/colorOnPrimaryContainer"/>
                 </FrameLayout>
 
                 <com.google.android.material.appbar.MaterialToolbar
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index d68230c3d..15608b0a5 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -335,7 +335,7 @@
     <color name="simple_theme_light_onPrimary">@color/white</color>
     <color name="simple_theme_light_primaryContainer">@color/blue_deep</color>
     <color name="simple_theme_light_onPrimaryContainer">@color/white_darkest</color>
-    <color name="simple_theme_light_secondary">@color/blue_deep</color>
+    <color name="simple_theme_light_secondary">#4F91FF</color>
     <color name="simple_theme_light_onSecondary">@color/white</color>
     <color name="simple_theme_light_secondaryContainer">#B9DFFF</color>
     <color name="simple_theme_light_onSecondaryContainer">#151B2C</color>
@@ -545,7 +545,7 @@
     <color name="reply_theme_light_onPrimary">#232F34</color>
     <color name="reply_theme_light_primaryContainer">#F9AA33</color>
     <color name="reply_theme_light_onPrimaryContainer">#232F34</color>
-    <color name="reply_theme_light_secondary">#FF9A00</color>
+    <color name="reply_theme_light_secondary">#E6900A</color>
     <color name="reply_theme_light_onSecondary">#232F34</color>
     <color name="reply_theme_light_secondaryContainer">#3E5560</color>
     <color name="reply_theme_light_onSecondaryContainer">#F6F8FA</color>
@@ -579,7 +579,7 @@
     <color name="reply_theme_night_onPrimary">#232F34</color>
     <color name="reply_theme_night_primaryContainer">#F9AA33</color>
     <color name="reply_theme_night_onPrimaryContainer">#232F34</color>
-    <color name="reply_theme_night_secondary">#FF9A00</color>
+    <color name="reply_theme_night_secondary">#DC8400</color>
     <color name="reply_theme_night_onSecondary">#232F34</color>
     <color name="reply_theme_night_secondaryContainer">#2D3E45</color>
     <color name="reply_theme_night_onSecondaryContainer">#F6F8FA</color>
@@ -615,7 +615,7 @@
     <color name="purple_theme_light_onPrimary">@color/white</color>
     <color name="purple_theme_light_primaryContainer">@color/red</color>
     <color name="purple_theme_light_onPrimaryContainer">@color/white</color>
-    <color name="purple_theme_light_secondary">@color/red</color>
+    <color name="purple_theme_light_secondary">#A34296</color>
     <color name="purple_theme_light_onSecondary">@color/white</color>
     <color name="purple_theme_light_secondaryContainer">#8449A8</color>
     <color name="purple_theme_light_onSecondaryContainer">@color/white</color>
@@ -649,7 +649,7 @@
     <color name="purple_theme_night_onPrimary">@color/white_purple_light</color>
     <color name="purple_theme_night_primaryContainer">@color/red_dark</color>
     <color name="purple_theme_night_onPrimaryContainer">@color/white</color>
-    <color name="purple_theme_night_secondary">@color/red</color>
+    <color name="purple_theme_night_secondary">#8A3C80</color>
     <color name="purple_theme_night_onSecondary">@color/white_purple_light</color>
     <color name="purple_theme_night_secondaryContainer">#4C186A</color>
     <color name="purple_theme_night_onSecondaryContainer">#DED1E8</color>