nicer colors in line with diagram palette

Author: dariolina

src/css/custom.css

@@ -14,25 +14,27 @@
 
 /* You can override the default Infima variables here. */
 :root {
-  --ifm-color-primary: #562b8e;
-  --ifm-color-primary-dark: #4c277e;
-  --ifm-color-primary-darker: #3f2068;
-  --ifm-color-primary-darkest: #26133f;
-  --ifm-color-primary-light: #6735a8;
-  --ifm-color-primary-lighter: #773ec2;
-  --ifm-color-primary-lightest: #8749d8;
+  --ifm-color-primary: #4c277e;
+  --ifm-color-primary-dark: #442371;
+  --ifm-color-primary-darker: #41216b;
+  --ifm-color-primary-darkest: #351b58;
+  --ifm-color-primary-light: #542b8b;
+  --ifm-color-primary-lighter: #572d91;
+  --ifm-color-primary-lightest: #6333a4;
+  --ifm-background-color: #fafafa;
   --ifm-code-font-size: 95%;
 }
 
 /* For readability concerns, you should choose a lighter palette in dark mode. */
 html[data-theme='dark'] {
-  --ifm-color-primary: #9f6de0;
-  --ifm-color-primary-dark: #4c277e;
-  --ifm-color-primary-darker: #3f2068;
-  --ifm-color-primary-darkest: #9f6de0;
-  --ifm-color-primary-light: #6735a8;
-  --ifm-color-primary-lighter: #773ec2;
-  --ifm-color-primary-lightest: #8749d8;
+  --ifm-color-primary: #ac9dc7;
+  --ifm-color-primary-dark: #9986ba;
+  --ifm-color-primary-darker: #8f7bb4;
+  --ifm-color-primary-darkest: #735b9f;
+  --ifm-color-primary-light: #bfb4d4;
+  --ifm-color-primary-lighter: #c9bfda;
+  --ifm-color-primary-lightest: #e6e1ee;
+  --ifm-background-color: #292929;
 }
 
 html[data-theme='dark'] .footer {