fix: color scheme

Author: christoph2806

_config.yml

@@ -7,7 +7,7 @@ url: "https://etherisc.github.io"
 # Just the Docs configuration
 search_enabled: true
 heading_anchors: true
-color_scheme: light
+color_scheme: osse
 aux_links:
   "OSSE on GitHub":
     - "https://github.com/etherisc/open-source-secure-element"
@@ -26,11 +26,6 @@ back_to_top_text: "Back to top"
 # Navigation
 nav_sort: case_sensitive
 
-# Custom CSS
-sass:
-  sass_dir: assets/css
-  style: compressed
-
 # Custom JavaScript
 after_footer_scripts:
   - assets/js/custom.js

_sass/color_schemes/osse.scss

@@ -0,0 +1,3 @@
+
+$link-color: #5081f4;
+$btn-primary-color: #5081f4;