Designs: Define --bg

designs/bueltge/adminer.css

@@ -5,6 +5,10 @@
  * @version  02/18/2014
  */
 
+html {
+	--bg: #F9F9F9;
+}
+
 body {
 margin: 0;
 font-size: 12px;

designs/dracula/adminer-dark.css

@@ -4,6 +4,10 @@
  * Color syntax inspired by Dracula Theme [https://draculatheme.com/]
  * @version 1.0 (June 2020)
  */
+html {
+	--bg: #282a36;
+}
+
  @import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@300;400;600&family=Ubuntu:wght@500;700&display=swap');
 
  :root {

designs/galkaev/adminer-dark.css

@@ -1,5 +1,9 @@
 /** theme "easy on the eyes" for Adminer by p.galkaev@miraidenshi-tech.jp */
 
+html {
+	--bg: black;
+}
+
 @import url(//fonts.googleapis.com/css?family=Source+Sans+Pro:400,900);
 
 /* reset

designs/konya/adminer.css

@@ -7,6 +7,10 @@
  * @link http://bueltge.de/
  */
 
+html {
+	--bg: #F9F9F9;
+}
+
 /* Added icons */
 /* IE doesn't support inline images - using some hack that eliminate IE*/
 html/*\*/>/*/*/body .error {background:#FFEEEE url("data:image/png;base64,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") no-repeat scroll 0.8em center; padding-left:38px;}

designs/lucas-sandery/adminer.css

@@ -15,6 +15,10 @@ Icons from http://FlatIcon.com:
 
 Background adapted from "All Work and No Play", http://thenewcode.com/1008/SVG-Movie-Backgrounds-Andys-Room-and-Overlook-Hotel
 */
+html {
+	--bg: #41658a;
+}
+
 html {
 	height: 100%;
 }

designs/mancave/adminer-dark.css

@@ -21,6 +21,9 @@
 /** (ORIGINAL THEME cReDiTs) theme "easy on the eyes" for Adminer by p.galkaev@miraidenshi-tech.jp */
 
 
+html {
+	--bg: #110236;
+}
 
 @import url(//maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css);
 

designs/mvt/adminer.css

@@ -14,6 +14,10 @@
 
 /*! normalize.css v4.2.0 | MIT License | github.com/necolas/normalize.css */
 
+html {
+	--bg: #eef0f0;
+}
+
 html {
 	font-family: sans-serif;
 	line-height: 1.15;

designs/rmsoft/adminer.css

@@ -34,7 +34,12 @@
  *   Default Silk icon set 1.3 by Mark James - https://opengameart.org/content/application-silk-icon-set-13
  *   Modified icons by Robert Mesaros
  *
- */#menu{padding:0 0 30px 0}
+ */
+html {
+	--bg: #f0f0f0;
+}
+
+#menu{padding:0 0 30px 0}
 .ltr .logout{right:0;left:auto;margin-top:.5em}
 .rtl .logout{left:0;right:auto;margin-top:.5em}
 html{-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box}

designs/rmsoft_blue-dark/adminer-dark.css

@@ -34,7 +34,12 @@
  *   Default Silk icon set 1.3 by Mark James - https://opengameart.org/content/application-silk-icon-set-13
  *   Modified icons by Robert Mesaros
  *
- */#menu{padding:0 0 30px 0}
+ */
+html {
+	--bg: #002240;
+}
+
+#menu{padding:0 0 30px 0}
 .ltr .logout{right:0;left:auto;margin-top:.5em}
 .rtl .logout{left:0;right:auto;margin-top:.5em}
 html{-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box}

designs/rmsoft_blue/adminer.css

@@ -34,7 +34,12 @@
  *   Default Silk icon set 1.3 by Mark James - https://opengameart.org/content/application-silk-icon-set-13
  *   Modified icons by Robert Mesaros
  *
- */#menu{padding:0 0 30px 0}
+ */
+html {
+	--bg: #82a7c0;
+}
+
+#menu{padding:0 0 30px 0}
 .ltr .logout{right:0;left:auto;margin-top:.5em}
 .rtl .logout{left:0;right:auto;margin-top:.5em}
 html{-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box}