(enh) added VS-Dark theme (#4272)

Author: Twineee1

CHANGES.md

@@ -1,5 +1,9 @@
 ## Version 11.11.2
 
+Themes:
+
+- added "vs Dark " theme [Twineee1][]
+
 New Grammars:
 
 - added 3rd party Aiken grammar to SUPPORTED_LANGUAGES [Josh Marchand][]
@@ -40,8 +44,10 @@ CONTRIBUTORS
 [Sebastiaan Speck]: https://github.com/sebastiaanspeck
 [Filip Hoffmann]: https://github.com/folospior
 [Kerry Shetline]: https://github.com/kshetline
+[Twineee1]: https://github.com/Twineee1
 [hbgl]: https://github.com/hbgl
 
+
 ## Version 11.11.1
 
 - Fixes regression with Rust grammar.

src/styles/vs-dark.css

@@ -0,0 +1,62 @@
+/*
+
+VS Dark theme based off the theme distributed with the Monaco editor by Twineee <[email protected]>
+
+*/
+.hljs {
+  background: #202020;
+  color: #CCCCCC;
+}
+
+.hljs-comment,
+.hljs-doctag,
+.hljs-quote,
+.hljs-variable {
+  color: #6A9954;
+}
+
+.hljs-keyword,
+.hljs-selector-tag,
+.hljs-built_in,
+.hljs-name,
+.hljs-tag {
+  color: #579CD6;
+}
+
+.hljs-string,
+.hljs-title,
+.hljs-section,
+.hljs-attribute,
+.hljs-literal,
+.hljs-template-tag,
+.hljs-template-variable,
+.hljs-type,
+.hljs-addition {
+  color: #CE9178;
+}
+
+.hljs-deletion,
+.hljs-selector-attr,
+.hljs-selector-pseudo,
+.hljs-meta {
+  color: #D4D4D4;
+}
+
+.hljs-attr {
+  color: #9DDCFE;
+}
+
+.hljs-symbol,
+.hljs-bullet,
+.hljs-link {
+  color: #00b0e8;
+}
+
+
+.hljs-emphasis {
+  font-style: italic;
+}
+
+.hljs-strong {
+  font-weight: bold;
+}