diff --git a/src/app/main/content/apps/calendar/calendar.component.scss b/src/app/main/content/apps/calendar/calendar.component.scss
index e59de032..de3eb503 100644
--- a/src/app/main/content/apps/calendar/calendar.component.scss
+++ b/src/app/main/content/apps/calendar/calendar.component.scss
@@ -216,52 +216,52 @@
         }
 
         &.Jan {
-            background-image: url('/assets/images/backgrounds/january.jpg');
-            background-position: 0 45%;
+            background-image: url('/assets/images/backgrounds/winter.jpg');
+            background-position: 0 65%;
         }
         &.Feb {
-            background-image: url('/assets/images/backgrounds/february.jpg');
-            background-position: 0 50%;
+            background-image: url('/assets/images/backgrounds/winter.jpg');
+            background-position: 0 65%;
         }
         &.Mar {
-            background-image: url('/assets/images/backgrounds/march.jpg');
-            background-position: 0 45%;
+            background-image: url('/assets/images/backgrounds/spring.jpg');
+            background-position: 0 19%;
         }
         &.Apr {
-            background-image: url('/assets/images/backgrounds/april.jpg');
-            background-position: 0 48%;
+            background-image: url('/assets/images/backgrounds/spring.jpg');
+            background-position: 0 19%;
         }
         &.May {
-            background-image: url('/assets/images/backgrounds/may.jpg');
-            background-position: 0 47%;
+            background-image: url('/assets/images/backgrounds/spring.jpg');
+            background-position: 0 19%;
         }
         &.Jun {
-            background-image: url('/assets/images/backgrounds/june.jpg');
-            background-position: 0 48%;
+            background-image: url('/assets/images/backgrounds/summer.jpg');
+            background-position: 0 91%;
         }
         &.Jul {
-            background-image: url('/assets/images/backgrounds/july.jpg');
-            background-position: 0 3%;
+            background-image: url('/assets/images/backgrounds/summer.jpg');
+            background-position: 0 91%;
         }
         &.Aug {
-            background-image: url('/assets/images/backgrounds/august.jpg');
-            background-position: 0 61%;
+            background-image: url('/assets/images/backgrounds/summer.jpg');
+            background-position: 0 91%;
         }
         &.Sep {
-            background-image: url('/assets/images/backgrounds/september.jpg');
-            background-position: 0 58%;
+            background-image: url('/assets/images/backgrounds/autumn.jpg');
+            background-position: 0 40%;
         }
         &.Oct {
-            background-image: url('/assets/images/backgrounds/october.jpg');
-            background-position: 0 50%;
+            background-image: url('/assets/images/backgrounds/autumn.jpg');
+            background-position: 0 40%;
         }
         &.Nov {
-            background-image: url('/assets/images/backgrounds/november.jpg');
-            background-position: 0 46%;
+            background-image: url('/assets/images/backgrounds/autumn.jpg');
+            background-position: 0 40%;
         }
         &.Dec {
-            background-image: url('/assets/images/backgrounds/december.jpg');
-            background-position: 0 43%;
+            background-image: url('/assets/images/backgrounds/winter.jpg');
+            background-position: 0 65%;
         }
 
         .header-content {
diff --git a/src/app/main/content/pages/authentication/forgot-password-2/forgot-password-2.component.scss b/src/app/main/content/pages/authentication/forgot-password-2/forgot-password-2.component.scss
index 777dee54..09c99133 100644
--- a/src/app/main/content/pages/authentication/forgot-password-2/forgot-password-2.component.scss
+++ b/src/app/main/content/pages/authentication/forgot-password-2/forgot-password-2.component.scss
@@ -5,7 +5,7 @@
     #forgot-password {
         width: 100%;
         overflow: hidden;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #forgot-password-intro {
diff --git a/src/app/main/content/pages/authentication/forgot-password/forgot-password.component.scss b/src/app/main/content/pages/authentication/forgot-password/forgot-password.component.scss
index e7ad498c..496f793d 100644
--- a/src/app/main/content/pages/authentication/forgot-password/forgot-password.component.scss
+++ b/src/app/main/content/pages/authentication/forgot-password/forgot-password.component.scss
@@ -5,7 +5,7 @@
     #forgot-password {
         width: 100%;
         overflow: auto;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #forgot-password-form-wrapper {
diff --git a/src/app/main/content/pages/authentication/lock/lock.component.scss b/src/app/main/content/pages/authentication/lock/lock.component.scss
index fd806147..fe974728 100644
--- a/src/app/main/content/pages/authentication/lock/lock.component.scss
+++ b/src/app/main/content/pages/authentication/lock/lock.component.scss
@@ -5,7 +5,7 @@
     #lock {
         width: 100%;
         overflow: auto;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #lock-form-wrapper {
diff --git a/src/app/main/content/pages/authentication/login-2/login-2.component.scss b/src/app/main/content/pages/authentication/login-2/login-2.component.scss
index 64aede4a..9955043e 100644
--- a/src/app/main/content/pages/authentication/login-2/login-2.component.scss
+++ b/src/app/main/content/pages/authentication/login-2/login-2.component.scss
@@ -5,7 +5,7 @@
     #login {
         width: 100%;
         overflow: hidden;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #login-intro {
diff --git a/src/app/main/content/pages/authentication/login/login.component.scss b/src/app/main/content/pages/authentication/login/login.component.scss
index ef535dde..72100d40 100644
--- a/src/app/main/content/pages/authentication/login/login.component.scss
+++ b/src/app/main/content/pages/authentication/login/login.component.scss
@@ -5,7 +5,7 @@
     #login {
         width: 100%;
         overflow: auto;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #login-form-wrapper {
@@ -22,7 +22,7 @@
                 padding: 32px;
                 background: #FFFFFF;
                 text-align: center;
-                @include mat-elevation(7);
+                @include mat-elevation(16);
 
                 @include media-breakpoint('xs') {
                     padding: 24px;
diff --git a/src/app/main/content/pages/authentication/mail-confirm/mail-confirm.component.scss b/src/app/main/content/pages/authentication/mail-confirm/mail-confirm.component.scss
index 2f6af3b8..3ca6345a 100644
--- a/src/app/main/content/pages/authentication/mail-confirm/mail-confirm.component.scss
+++ b/src/app/main/content/pages/authentication/mail-confirm/mail-confirm.component.scss
@@ -5,7 +5,7 @@
     #mail-confirm {
         width: 100%;
         overflow: auto;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #mail-confirm-form-wrapper {
diff --git a/src/app/main/content/pages/authentication/register-2/register-2.component.scss b/src/app/main/content/pages/authentication/register-2/register-2.component.scss
index 96e135f0..01227f58 100644
--- a/src/app/main/content/pages/authentication/register-2/register-2.component.scss
+++ b/src/app/main/content/pages/authentication/register-2/register-2.component.scss
@@ -5,7 +5,7 @@
     #register {
         width: 100%;
         overflow: hidden;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #register-intro {
diff --git a/src/app/main/content/pages/authentication/register/register.component.scss b/src/app/main/content/pages/authentication/register/register.component.scss
index 21c65f90..a81773bf 100644
--- a/src/app/main/content/pages/authentication/register/register.component.scss
+++ b/src/app/main/content/pages/authentication/register/register.component.scss
@@ -5,7 +5,7 @@
     #register {
         width: 100%;
         overflow: auto;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #register-form-wrapper {
diff --git a/src/app/main/content/pages/authentication/reset-password-2/reset-password-2.component.scss b/src/app/main/content/pages/authentication/reset-password-2/reset-password-2.component.scss
index 9892460e..52684ac9 100644
--- a/src/app/main/content/pages/authentication/reset-password-2/reset-password-2.component.scss
+++ b/src/app/main/content/pages/authentication/reset-password-2/reset-password-2.component.scss
@@ -5,7 +5,7 @@
     #reset-password {
         width: 100%;
         overflow: hidden;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #reset-password-intro {
diff --git a/src/app/main/content/pages/authentication/reset-password/reset-password.component.scss b/src/app/main/content/pages/authentication/reset-password/reset-password.component.scss
index 56ed8f07..63aacc16 100644
--- a/src/app/main/content/pages/authentication/reset-password/reset-password.component.scss
+++ b/src/app/main/content/pages/authentication/reset-password/reset-password.component.scss
@@ -5,7 +5,7 @@
     #reset-password {
         width: 100%;
         overflow: auto;
-        background: url('/assets/images/backgrounds/march.jpg') no-repeat;
+        background: url('/assets/images/backgrounds/dark-material-bg.jpg') no-repeat;
         background-size: cover;
 
         #reset-password-form-wrapper {
diff --git a/src/assets/images/backgrounds/april.jpg b/src/assets/images/backgrounds/april.jpg
deleted file mode 100644
index 6c2152bb..00000000
Binary files a/src/assets/images/backgrounds/april.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/august.jpg b/src/assets/images/backgrounds/august.jpg
deleted file mode 100644
index 14cc9ff7..00000000
Binary files a/src/assets/images/backgrounds/august.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/autumn.jpg b/src/assets/images/backgrounds/autumn.jpg
new file mode 100644
index 00000000..1ba75a8f
Binary files /dev/null and b/src/assets/images/backgrounds/autumn.jpg differ
diff --git a/src/assets/images/backgrounds/dark-material-bg.jpg b/src/assets/images/backgrounds/dark-material-bg.jpg
new file mode 100644
index 00000000..2453fde7
Binary files /dev/null and b/src/assets/images/backgrounds/dark-material-bg.jpg differ
diff --git a/src/assets/images/backgrounds/december.jpg b/src/assets/images/backgrounds/december.jpg
deleted file mode 100644
index d81386bd..00000000
Binary files a/src/assets/images/backgrounds/december.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/february.jpg b/src/assets/images/backgrounds/february.jpg
deleted file mode 100644
index a9aa605b..00000000
Binary files a/src/assets/images/backgrounds/february.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/january.jpg b/src/assets/images/backgrounds/january.jpg
deleted file mode 100644
index 60ad972b..00000000
Binary files a/src/assets/images/backgrounds/january.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/july.jpg b/src/assets/images/backgrounds/july.jpg
deleted file mode 100644
index 1dc30568..00000000
Binary files a/src/assets/images/backgrounds/july.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/june.jpg b/src/assets/images/backgrounds/june.jpg
deleted file mode 100644
index 80c6ec24..00000000
Binary files a/src/assets/images/backgrounds/june.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/march.jpg b/src/assets/images/backgrounds/march.jpg
deleted file mode 100644
index 01684e40..00000000
Binary files a/src/assets/images/backgrounds/march.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/may.jpg b/src/assets/images/backgrounds/may.jpg
deleted file mode 100644
index bc6d04e1..00000000
Binary files a/src/assets/images/backgrounds/may.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/november.jpg b/src/assets/images/backgrounds/november.jpg
deleted file mode 100644
index 31694e66..00000000
Binary files a/src/assets/images/backgrounds/november.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/october.jpg b/src/assets/images/backgrounds/october.jpg
deleted file mode 100644
index 56364ba5..00000000
Binary files a/src/assets/images/backgrounds/october.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/september.jpg b/src/assets/images/backgrounds/september.jpg
deleted file mode 100644
index 637cfde8..00000000
Binary files a/src/assets/images/backgrounds/september.jpg and /dev/null differ
diff --git a/src/assets/images/backgrounds/spring.jpg b/src/assets/images/backgrounds/spring.jpg
new file mode 100644
index 00000000..2bcc203b
Binary files /dev/null and b/src/assets/images/backgrounds/spring.jpg differ
diff --git a/src/assets/images/backgrounds/summer.jpg b/src/assets/images/backgrounds/summer.jpg
new file mode 100644
index 00000000..a33aa2c6
Binary files /dev/null and b/src/assets/images/backgrounds/summer.jpg differ
diff --git a/src/assets/images/backgrounds/winter.jpg b/src/assets/images/backgrounds/winter.jpg
new file mode 100644
index 00000000..76caebc5
Binary files /dev/null and b/src/assets/images/backgrounds/winter.jpg differ