FIX: make linsk different colors than headings

Author: jklymak

mpl_sphinx_theme/static/css/style.css

@@ -1,17 +1,19 @@
+/* rgb #11557c */
 html[data-theme="light"] {
-  --pst-color-primary: #11557c;
+  --pst-color-primary: hsl(202, 76%, 28%);
   --pst-color-text-base: rgb(51, 51, 51);
   --sd-color-primary-text: rgb(250, 250, 250);
+  --pst-color-link: hsl(202, 76%, 25%);
 }
 
 html[data-theme="dark"] {
-  --pst-color-primary: rgb(92, 150, 194);
+  --pst-color-primary: rgb(70, 152, 198);
   --pst-color-text-base: rgb(250, 250, 250);
   --sd-color-primary-text: rgb(51, 51, 51);
+  --pst-color-link: hsl(202, 53%, 80%);
 }
 
 :root {
---pst-color-link: var(--pst-color-primary);
 --pst-color-link-hover: var(--pst-color-secondary);
 }