diff --git a/src/plainui/jinja2/plainui/base.html b/src/plainui/jinja2/plainui/base.html
index a160a031a3189d2311dd664dad3db8d5598f79f3..31afc008d413f8a7dc50e9e024594075c2d65c29 100644
--- a/src/plainui/jinja2/plainui/base.html
+++ b/src/plainui/jinja2/plainui/base.html
@@ -28,7 +28,7 @@
                 <a href="#footer">Zum Footer</a>
             </li>
         </ul>
-        <div class="container-fluid p-0 d-flex flex-column min-vh-100">
+        <div class="container-fluid p-0 d-flex flex-column min-vh-100 rc3-static-background">
             {%- if browser_type(request) == 'ie' -%}
                 <div class="fixed-top alert bg-primary text-center" role="alert">
                     <a href="https://www.getfirefox.com/" target="_blank" class="h2 text-white">{{ _("Your Browser is broken. Get a better one here!") }}</a>
@@ -56,19 +56,19 @@
             <footer id="footer" class="mt-auto border-top border-primary py-3 py-xl-5">
                 <ul class="container nav p-0 justify-content-center">
                     <li>
-                        <a class="nav-link" title="{{ _("Contact Us") }}" href="https://legal.rc3.world">{{ _("Contact Us") }}</a>
+                        <a class="nav-link text-white" title="{{ _("Contact Us") }}" href="https://legal.rc3.world">{{ _("Contact Us") }}</a>
                     </li>
                     <li>
-                        <a class="nav-link" title="{{ _("Privacy Policy") }}" href="https://legal.rc3.world">{{ _("Privacy Policy") }}</a>
+                        <a class="nav-link text-white" title="{{ _("Privacy Policy") }}" href="https://legal.rc3.world">{{ _("Privacy Policy") }}</a>
                     </li>
                     <li>
-                        <a class="nav-link" title="{{ _("About RC3") }}" href="https://howto.rc3.world/">{{ _("About RC3") }}</a>
+                        <a class="nav-link text-white" title="{{ _("About RC3") }}" href="https://howto.rc3.world/">{{ _("About RC3") }}</a>
                     </li>
                     <li>
-                        <a class="nav-link" title="{{ _("Disclaimer") }}" href="https://legal.rc3.world">{{ _("Disclaimer") }}</a>
+                        <a class="nav-link text-white" title="{{ _("Disclaimer") }}" href="https://legal.rc3.world">{{ _("Disclaimer") }}</a>
                     </li>
                     <li>
-                        <a class="nav-link" title="{{ _("Principles") }}" href="https://howto.rc3.world/rules.html">{{ _("Principles") }}</a>
+                        <a class="nav-link text-white" title="{{ _("Principles") }}" href="https://howto.rc3.world/rules.html">{{ _("Principles") }}</a>
                     </li>
                 </ul>
             </footer>
diff --git a/src/plainui/jinja2/plainui/component_gallery.html b/src/plainui/jinja2/plainui/component_gallery.html
index 65a1d773b8b3ada00ece26d288439edec583904f..0df61011503a4abc53343176d6c1593999288e13 100644
--- a/src/plainui/jinja2/plainui/component_gallery.html
+++ b/src/plainui/jinja2/plainui/component_gallery.html
@@ -39,7 +39,7 @@
 <dl>
     <dt class="h2 pb-3 mb-3 border-bottom">Logo</dt>
     <dd class="mb-10">
-        {{ logoMacro.logo(static('plainui/img/rc3-logo-' + scope|default('plattform') +  '.svg'), "#") }}
+        {{ logoMacro.logo(static('plainui/img/02a_Logo_web_200px_still.png'), "#") }}
     </dd>
 
     <dt class="h2 pb-3 mb-3 border-bottom">heroimage</dt>
diff --git a/src/plainui/jinja2/plainui/components/logo.html b/src/plainui/jinja2/plainui/components/logo.html
index a16a7e9f4b3c360f396e334955c9ef3cc9ab5a9d..b0cfb9f70fdce345141ee4badf1d2aa8efa8de73 100644
--- a/src/plainui/jinja2/plainui/components/logo.html
+++ b/src/plainui/jinja2/plainui/components/logo.html
@@ -1,4 +1,4 @@
-{% macro logo(img="", link="/", alt="Logo", title="Logo") -%}
+{% macro logo(img="", link="plainui/img/02a_Logo_web_200px_still.png", alt="Logo", title="Logo") -%}
 <a class="rc3-logo" href="{{ link }}">
     <img src="{{img}}" alt="{{ alt }}" title="{{ title }}" />
 </a>
diff --git a/src/plainui/jinja2/plainui/header.html b/src/plainui/jinja2/plainui/header.html
index ebc91956c1470fd224144037786f6020dd827ca7..80781ea4a6d3291d67b188ecf7c5a73aa2ddf0a6 100644
--- a/src/plainui/jinja2/plainui/header.html
+++ b/src/plainui/jinja2/plainui/header.html
@@ -3,7 +3,7 @@
 {% set view_name = request.resolver_match.view_name %}
 {% set scope = scope|default('plattform') %}
 <header id="header" class="rc3-header container mb-3 mt-6">
-    {{ logoMacro.logo(static('plainui/img/rc3-logo-' + scope +  '.svg'), url('plainui:index'), conf.name + " logo", conf.name + " logo") }}
+    {{ logoMacro.logo(static('plainui/img/02a_Logo_web_200px_still.png'), url('plainui:index'), conf.name + " logo", conf.name + " logo") }}
     <nav class="rc3-header__main">
         <a class="btn {{ 'btn-transparent' if view_name == 'plainui:world' else 'btn-transparent' }} rc3-header__main-linkbox" href="{{ url('plainui:world') }}" title="{{ _("world") }}">
             {{ _("world") }}
diff --git a/src/plainui/static/plainui/img/02a_Logo_web_200px_still.png b/src/plainui/static/plainui/img/02a_Logo_web_200px_still.png
new file mode 100644
index 0000000000000000000000000000000000000000..189926ae28d77a5d27c8de7dc813f8b616f14ab7
Binary files /dev/null and b/src/plainui/static/plainui/img/02a_Logo_web_200px_still.png differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_01.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_01.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..823201d116122c1127f71bf42075c9423308d0a2
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_01.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_02.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_02.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..c26b24480660557d264b305bdbe862814e8a4be0
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_02.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_03.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_03.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..0b74545634fb2205b8644cb8ad5111afd47f9b15
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_03.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_04.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_04.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..2597553fcd046f78f50966e19d3b53e652ebf276
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_04.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_05.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_05.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..1f04275ac2fa993f02a5357f3669360a7b926c08
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_05.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_06.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_06.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..9ec3181f73e336963f0db4aa5f6a2662afe8b9c5
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_06.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_07.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_07.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..47672979633f2d206233706493ec55d9bfd5dfe7
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_07.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_08.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_08.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..68e2258efb61b2288100fcb28162c842c6d434b6
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_08.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_01.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_01.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..416625dfc682306d298b7394575dff57a49c359e
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_01.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_02.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_02.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..2bd27ad398cf5300471fe3bff37bd0129a27a54c
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_02.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_03.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_03.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..a25b3a8d144380124f5c84dcfba9ebff4896e25a
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_03.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_04.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_04.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..2951670ff92cabfe6fa178776e8a7103b720e41b
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_04.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_05.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_05.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..c55c32b1d04462a83ed0ee3c68e1d6adf9d22bc2
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_05.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_06.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_06.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..f59db2aed68d8a62a669f9e784243e2ca2dd0aa0
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_06.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_07.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_07.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..68ebf746a6fed61716b52a5ee9e775a34005be11
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_07.jpg differ
diff --git a/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_08.jpg b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_08.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..335387e807016a6bb0a870ad0f85896b8d139000
Binary files /dev/null and b/src/plainui/static/plainui/img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_08.jpg differ
diff --git a/src/plainui/styles/_util-classes.scss b/src/plainui/styles/_util-classes.scss
index 28ddfc512dbf0474ef8f25705a5659f48aa7def4..0344164b7f7c0a98a7b7862f8e467f0312e1127a 100644
--- a/src/plainui/styles/_util-classes.scss
+++ b/src/plainui/styles/_util-classes.scss
@@ -92,6 +92,27 @@ h6,
     font-family: $font-family-sans-serif;
 }
 
+.rc3-static-background {
+    background-repeat: no-repeat;
+    background-size: cover;
+
+    
+    @include media-breakpoint-down(xs) {
+        
+    }
+}
+
+@media screen and (orientation:portrait) {
+    .rc3-static-background {
+        background-image: url($staic-background-port);
+    }
+}
+@media screen and (orientation:landscape) {
+    .rc3-static-background {
+        background-image: url($staic-background-land);
+    }
+}
+
 h6,
 .h6,
 .text-transform-none {
diff --git a/src/plainui/styles/utils/_bootstrap-theme-assembly.scss b/src/plainui/styles/utils/_bootstrap-theme-assembly.scss
index 87326e277c2232b389dba9ded30c2cdac72e69bf..6ada22064efdd62ebcb161de60b07911c7b37f64 100644
--- a/src/plainui/styles/utils/_bootstrap-theme-assembly.scss
+++ b/src/plainui/styles/utils/_bootstrap-theme-assembly.scss
@@ -5,7 +5,7 @@
 @import "./forms";
 
 $gray-100: map-get($assembly, "four");
-$gray-900: map-get($assembly, "bg");
+$gray-900: map-get($assembly, "bg-three");
 
 // bootstrap colors map has only white, gray-dark, use theme-colors instead
 $primary: map-get($assembly, "one");
@@ -31,17 +31,17 @@ $gradient-plattform-horizontal: linear-gradient(270deg, map-get($assembly, "bg")
 $gradient-assembly-vertical:  linear-gradient(0deg, map-get($assembly, "bg") 0%, map-get($assembly, "two-dark") 100%);
 $gradient-assembly-horizontal:  linear-gradient(270deg, map-get($assembly, "bg") 0%, map-get($assembly, "two-dark") 100%);
 
-$body-bg: $gray-900;
+$body-bg: #000;
 $body-color: $gray-100;
 $pre-color: $gray-100;
 $code-color: $primary;
-$headings-color: $secondary;
-$blockquote-small-color: $secondary;
+$headings-color: $primary;
+$blockquote-small-color: $primary;
 $card-cap-bg: $info;
 
 $link-hover-color: $primary;
 
-$border-color: $secondary;
+$border-color: $primary;
 $hr-border-color: $primary;
 $markdown-border-color: $primary;
 
@@ -49,7 +49,7 @@ $table-head-color: $gray-100;
 
 $input-color: $gray-100;
 $input-focus-color: $gray-100;
-$input-border-color: $secondary;
+$input-border-color: $primary;
 $input-placeholder-color: $gray-100;
 $input-bg: $info;
 $input-disabled-bg: $info;
@@ -64,3 +64,6 @@ $box-shadow-morphism: 2px 2px 4px #000000, -2px -2px 4px #162D38, inset 0px 0px
 $btn-active-box-shadow: $input-btn-focus-box-shadow;
 
 $modal-content-bg: $gray-900;
+
+$staic-background-land: 'img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_05.jpg';
+$staic-background-port: 'img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_05.jpg';
\ No newline at end of file
diff --git a/src/plainui/styles/utils/_bootstrap-theme-high-contrast.scss b/src/plainui/styles/utils/_bootstrap-theme-high-contrast.scss
index 06a87017317dd7847eaf0822b20fce44a88614bc..b5394b9862f7bb3fbae5bccd1adb46891c632a28 100644
--- a/src/plainui/styles/utils/_bootstrap-theme-high-contrast.scss
+++ b/src/plainui/styles/utils/_bootstrap-theme-high-contrast.scss
@@ -61,3 +61,7 @@ $box-shadow-morphism: 2px 2px 4px #000000, -2px -2px 4px #1A1638, inset 2px 2px
 $btn-active-box-shadow: $input-btn-focus-box-shadow;
 
 $modal-content-bg: $gray-900;
+
+
+$staic-background-land: 'img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_03.jpg';
+$staic-background-port: 'img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_03.jpg';
\ No newline at end of file
diff --git a/src/plainui/styles/utils/_bootstrap-theme-plattform.scss b/src/plainui/styles/utils/_bootstrap-theme-plattform.scss
index 2a7285e1373e89c31f3602a410c73644344aab1e..c9f6516df72b15c1afe379f8c1ac62aa2caaf8a3 100644
--- a/src/plainui/styles/utils/_bootstrap-theme-plattform.scss
+++ b/src/plainui/styles/utils/_bootstrap-theme-plattform.scss
@@ -31,7 +31,7 @@ $gradient-plattform-horizontal: linear-gradient(270deg, map-get($plattform, "bg"
 $gradient-assembly-vertical:  linear-gradient(0deg, map-get($plattform, "bg") 0%, map-get($assembly, "two-dark") 100%);
 $gradient-assembly-horizontal:  linear-gradient(270deg, map-get($plattform, "bg") 0%, map-get($assembly, "two-dark") 100%);
 
-$body-bg: $gray-900;
+$body-bg: #000;
 $body-color: $gray-100;
 $pre-color: $gray-100;
 $code-color: $primary;
@@ -44,7 +44,7 @@ $link-hover-color: $link-color;
 
 $border-color: $tertiary;
 $hr-border-color: $primary;
-$markdown-border-color: $secondary;
+$markdown-border-color: $primary;
 $table-head-color: $gray-100;
 
 $input-color: $gray-100;
@@ -66,3 +66,6 @@ $box-shadow-morphism: 2px 2px 4px #000000, -2px -2px 4px #1A1638;
 $btn-active-box-shadow: $input-btn-focus-box-shadow;
 
 $modal-content-bg: $gray-900;
+
+$staic-background-land: 'img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_01.jpg';
+$staic-background-port: 'img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_01.jpg';
diff --git a/src/plainui/styles/utils/_bootstrap-theme-world.scss b/src/plainui/styles/utils/_bootstrap-theme-world.scss
index 11223724351fe3f776752d4bc69162e36e6dca8d..6c41b5b536c2155b2ac8daf53643d83874e5402c 100644
--- a/src/plainui/styles/utils/_bootstrap-theme-world.scss
+++ b/src/plainui/styles/utils/_bootstrap-theme-world.scss
@@ -5,12 +5,12 @@
 @import "./forms";
 
 $gray-100: map-get($world, "four");
-$gray-900: map-get($world, "bg");
+$gray-900: map-get($world, "bg-three");
 
 // bootstrap colors map has only white, gray-dark, use theme-colors instead
 $primary:       map-get($world, "one");
-$secondary:     map-get($world, "three");
-$tertiary:      map-get($world, "two");
+$secondary:     map-get($world, "two");
+$tertiary:      map-get($world, "three");
 $success:       map-get($world, "one");
 $info:          map-get($world, "bg-two");
 $warning:       map-get($world, "three");
@@ -27,7 +27,7 @@ $gradient-plattform-horizontal: linear-gradient(270deg, map-get($assembly, "bg")
 $gradient-assembly-vertical:  linear-gradient(0deg, map-get($assembly, "bg") 0%, map-get($assembly, "two-dark") 100%);
 $gradient-assembly-horizontal:  linear-gradient(270deg, map-get($assembly, "bg") 0%, map-get($assembly, "two-dark") 100%);
 
-$body-bg: $gray-900;
+$body-bg: #000;
 $body-color: $gray-100;
 $pre-color: $gray-100;
 $code-color: $primary;
@@ -57,3 +57,6 @@ $box-shadow-morphism: 2px 2px 4px #000000, -2px -2px 4px #1A1638;
 $btn-active-box-shadow: $input-btn-focus-box-shadow;
 
 $modal-content-bg: $gray-900;
+
+$staic-background-land: 'img/10c_Background_dark_theme/10c_Background_dark_theme_desktop_07.jpg';
+$staic-background-port: 'img/10c_Background_dark_theme/10c_Background_dark_theme_mobile_07.jpg';