diff --git a/doc_src/python_docs_theme/static/pygments.css b/doc_src/python_docs_theme/static/pygments.css
index b213f5d1f..2da95380a 100644
--- a/doc_src/python_docs_theme/static/pygments.css
+++ b/doc_src/python_docs_theme/static/pygments.css
@@ -3,7 +3,7 @@
 .highlight .k { color: #204a87; font-weight: bold } /* Keyword */
 .highlight .o { color: #00a6b2; } /* Operator */
 .highlight .p { color: #00bfff; } /* Punctuation */
-.highlight .c { color: #8f7902; } /* Comment */
+.highlight .c { color: #777; font-style: italic; } /* Comment */
 .highlight .ch { color: #8f7902; font-style: italic } /* Comment.Hashbang */
 .highlight .cm { color: #8f7902; font-style: italic } /* Comment.Multiline */
 .highlight .cp { color: #8f7902; font-style: italic } /* Comment.Preproc */
@@ -46,18 +46,19 @@
 .highlight .sc { color: #4e9a06 } /* Literal.String.Char */
 .highlight .dl { color: #4e9a06 } /* Literal.String.Delimiter */
 .highlight .sd { color: #8f7902; font-style: italic } /* Literal.String.Doc */
-.highlight .s2 { color: #999900 } /* Literal.String.Double */
+.highlight .s2 { color: #4daf08 } /* Literal.String.Double */
 .highlight .se { color: #00a6b2 } /* Literal.String.Escape */
 .highlight .sh { color: #4e9a06 } /* Literal.String.Heredoc */
 .highlight .si { color: #4e9a06 } /* Literal.String.Interpol */
 .highlight .sx { color: #4e9a06 } /* Literal.String.Other */
 .highlight .sr { color: #4e9a06 } /* Literal.String.Regex */
-.highlight .s1 { color: #999900 } /* Literal.String.Single */
+.highlight .s1 { color: #d0d00b } /* Literal.String.Single */
 .highlight .ss { color: #4e9a06 } /* Literal.String.Symbol */
 .highlight .bp { color: #3465a4 } /* Name.Builtin.Pseudo */
 .highlight .il { color: #0000cf; font-weight: bold } /* Literal.Number.Integer.Long */
 
 :root {
+    /* custom property */
     --contrast: #000000;
 }
 
@@ -67,9 +68,9 @@
     }
     .highlight .k { color: #507a97; font-weight: bold } /* Keyword */
     .highlight .nf { color: #009fe7 } /* Name.Function */
-    .highlight .c { color: #8fb902; } /* Comment */
     .highlight .nf { color: #008fd7 } /* Name.Function */
     .highlight .nb { color: #209a87 } /* Name.Builtin */
+    .highlight .s2 { color: #9ce781 } /* Literal.String.Double */
 }
 .highlight .g { color: var(--contrast) } /* Generic */
 .highlight .l { color: var(--contrast) } /* Literal */