Use dark background and monokai style for code blocks

.static/dark_background.css

@@ -0,0 +1,3 @@
+codeblock div[class^='highlight'], pre.literal-block div[class^='highlight'], .rst-content .literal-block div[class^='highlight'], div[class^='highlight'] div[class^='highlight'] {
+    background-color: #272822;
+}

conf.py

@@ -95,7 +95,7 @@
 #show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'emacs'
+pygments_style = 'monokai'
 
 # The default language used to highlight source code
 highlight_language = 'topas'
@@ -366,10 +366,12 @@
 # If false, no index is generated.
 #epub_use_index = True
 
-def setup(sphinx):
+def setup(app):
     sys.path.insert(0, os.path.abspath('./util'))
     from topas_lexer import TopasLexer
-    sphinx.add_lexer("topas", TopasLexer())
+    app.add_lexer("topas", TopasLexer())
+    app.add_stylesheet('pygments.css')
+    app.add_stylesheet('dark_background.css')
 
     from pygments.styles import STYLE_MAP
     print(sorted(STYLE_MAP.keys()))

util/topas_lexer.py

@@ -14,14 +14,14 @@ class TopasLexer(RegexLexer):
         'root': [
             (r'#.*$', Comment),
             (r'(?i)(includefile|inheritedvalue)', Keyword.Namespace),
-            (r'^([bidus]v?)(:)', bygroups(Keyword.Type, Text)),
+            (r'^([bidus]v?)(:)', bygroups(Keyword.Type, Name)),
             (r'(?i)(ma|el|is|ge|gr|ph|so|sc|tf|ts|vr)([/\w]*/)([\w]+)',
-                bygroups(Name.Class, Name.Class, Name.Variable)),
+                bygroups(Name.Class, Name.Class, Name.Attribute)),
             (r'"(?i)(true|false|t|f|1|0)"', Keyword.Constant),
             (r'"', String, 'string'),
             (r'(?<!\w)[-+]?(\d+(\.\d*)?|\.\d+)([eE][-+]?\d+)?', Number),
             (r'[=+*-]', Operator),
-            (r'.', Text),
+            (r'.', Name),
         ],
         'string': [
             ('[^"]+', String),