change code highlighting theme

Gemfile

@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem 'jekyll-compose', group: [:jekyll_plugins]

Gemfile.lock

@@ -0,0 +1,64 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
+    colorator (1.1.0)
+    concurrent-ruby (1.1.4)
+    em-websocket (0.5.1)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0.6.0)
+    eventmachine (1.2.7)
+    ffi (1.9.25)
+    forwardable-extended (2.6.0)
+    http_parser.rb (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jekyll (3.8.5)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
+      em-websocket (~> 0.5)
+      i18n (~> 0.7)
+      jekyll-sass-converter (~> 1.0)
+      jekyll-watch (~> 2.0)
+      kramdown (~> 1.14)
+      liquid (~> 4.0)
+      mercenary (~> 0.3.3)
+      pathutil (~> 0.9)
+      rouge (>= 1.7, < 4)
+      safe_yaml (~> 1.0)
+    jekyll-compose (0.9.0)
+      jekyll (~> 3.0)
+    jekyll-sass-converter (1.5.2)
+      sass (~> 3.4)
+    jekyll-watch (2.1.2)
+      listen (~> 3.0)
+    kramdown (1.17.0)
+    liquid (4.0.1)
+    listen (3.1.5)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
+    mercenary (0.3.6)
+    pathutil (0.16.2)
+      forwardable-extended (~> 2.6)
+    public_suffix (3.0.3)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
+    rouge (3.3.0)
+    ruby_dep (1.5.0)
+    safe_yaml (1.0.4)
+    sass (3.7.2)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-inotify (>= 0.9.7, >= 0.9)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  jekyll-compose
+
+BUNDLED WITH
+   1.17.2

_config.yml

@@ -1,21 +1,20 @@
 # Site settings
 title: NixNet
 description: >
-  Ramblings from a random GNU/Linux user, sysadmin, and professional multi-instrumentalist
+    Ramblings from a random GNU/Linux user, sysadmin, and professional multi-instrumentalist
 baseurl: "" # the subpath of your site, e.g. /blog/
 url: "https://nixnet.xyz" # the base hostname & protocol for your site
 permalink: /:title/
 
 author:
-  fullname: Amolith
-  mastodon: amolith
-  gnusocial: amolith
-  telegram: amolith
-  email: amolith@nixnet.xyz?body=Please%20make%20sure%20this%20email%20is%20encrypted%20with%20my%20GPG%20key:%20https://nixnet.xyz/amolith.txt
-  gpgkey: amolith.txt
+    fullname: Amolith
+    mastodon: amolith
+    gnusocial: amolith
+    telegram: amolith
+    email: amolith@nixnet.xyz?body=Please%20make%20sure%20this%20email%20is%20encrypted%20with%20my%20GPG%20key:%20https://nixnet.xyz/amolith.txt
+    gpgkey: amolith.txt
 
-# Syntax highlighting
-highlightstyle: ''
+highlightstyle: 'agate'
 styles: [agate, androidstudio, arta, asceti, atelier-cave.dark, atelier-cave.light, atelier-dune.dark, atelier-dune.light, atelier-estuary.dark, atelier-estuary.light, atelier-forest.dark, atelier-forest.light, atelier-heath.dark, atelier-heath.light, atelier-lakeside.dark, atelier-lakeside.light, atelier-plateau.dark, atelier-plateau.light, atelier-savanna.dark, atelier-savanna.light, atelier-seaside.dark, atelier-seaside.light, atelier-sulphurpool.dark, atelier-sulphurpool.light, brown_paper, codepen-embed, color-brewer, dark, darkula, default, docco, far, foundation, github, github-gist, googlecode, grayscale, hopscotch, hybrid, idea, ir_black, kimbie.dark, kimbie.light, magula, mono-blue, monokai, monokai_sublime, obsidian, paraiso.dark, paraiso.light, pojoaque, railscast, rainbow, school_book, solarized_dark, solarized_light, styles_list.txt, sunburst, tomorrow, tomorrow-night-blue, tomorrow-night-bright, tomorrow-night, tomorrow-night-eightie, v, xcode, zenburn]
 
 # Handling Reading
@@ -24,3 +23,6 @@ exclude: ["README.md", "README.html"]
 # Build settings
 highlighter: null
 markdown: kramdown
+
+jekyll_compose:
+    auto_open: true