diff --git a/cgit.css b/cgit.css
index 35ec45b..76eb3f4 100644
--- a/cgit.css
+++ b/cgit.css
@@ -930,3 +930,116 @@ div#cgit span.libravatar:hover > img.onhover {
         background-color: #eeeeee;
         box-shadow: 2px 2px 7px rgba(100,100,100,0.75);
 }
+
+/*
+   Color overrides for browsers running in dark mode.
+   "only all and ..." forces very old browsers to ignore the media query:
+   https://developer.mozilla.org/en-US/docs/Web/CSS/Media_Queries/Using_media_queries#improving_compatibility_with_older_browsers
+*/
+:root { color-scheme: light dark; }
+@media only all and (prefers-color-scheme: dark) {
+	html, div#cgit { color: #eee; background: #171717; }
+	div#cgit a { color: #3af; }
+	div#cgit .diffstat-header a { color: #28d; }
+	div#cgit table#header td.main a { color: #eee; }
+	div#cgit table#header td.sub { color: #999; }
+	div#cgit table.tabs { border-bottom-color: #444; }
+	div#cgit table.tabs td a { color: #888; }
+	div#cgit table.tabs td a.active { color: #fff; background-color: #444; }
+	div#cgit div.path { color: #eee; background-color: #333; }
+	div#cgit div.content { border-bottom-color: #bbb; }
+	div#cgit table.list tr { background: #171717; }
+	div#cgit table.list tr.logheader { background: #171717; }
+	div#cgit table.list tr:nth-child(even) { background: #171717; }
+	div#cgit table.list tr:nth-child(odd) { background: #1f1f1f; }
+	div#cgit table.list tr:hover { background: #333; }
+	div#cgit table.list tr.nohover { background: #171717; }
+	div#cgit table.list tr.nohover:hover { background: #171717; }
+	div#cgit table.list tr.nohover-highlight:hover:nth-child(even) { background: #171717; }
+	div#cgit table.list tr.nohover-highlight:hover:nth-child(odd) { background: #1f1f1f; }
+	div#cgit table.list td.commitgraph .column1 { color: #f55; }
+	div#cgit table.list td.commitgraph .column2 { color: #5f5; }
+	div#cgit table.list td.commitgraph .column3 { color: #ff5; }
+	div#cgit table.list td.commitgraph .column4 { color: #55f; }
+	div#cgit table.list td.commitgraph .column5 { color: #f5f; }
+	div#cgit table.list td.commitgraph .column6 { color: #5ff; }
+	div#cgit table.list td a { color: #eee; }
+	div#cgit table.list td a.ls-dir { color: #28d; }
+	div#cgit table.list td a:hover { color: #3af; }
+	div#cgit table#downloads { border-color: #888; }
+	div#cgit table#downloads th { background-color: #333; }
+	div#cgit div#blob { border-color: #eee; }
+	div#cgit table.blob { border-top-color: #eee; }
+	div#cgit table.blob td.hashes,
+	div#cgit table.blob td.lines { color: #eee; }
+	div#cgit table.blob td.linenumbers { border-right-color: gray; }
+	div#cgit table.blob td.linenumbers a,
+	div#cgit table.ssdiff td.lineno a { color: gray; }
+	div#cgit table.blob td.linenumbers a:hover,
+	div#cgit table.ssdiff td.lineno a:hover { color: #eee; }
+	div#cgit table.blame div.alt:nth-child(even) { background: #171717; }
+	div#cgit table.blame div.alt:nth-child(odd) { background: #1f1f1f; }
+	div#cgit table.bin-blob { border-color: #eee; }
+	div#cgit table.bin-blob th { border-color: #888; }
+	div#cgit table.bin-blob td { border-left-color: #888; }
+	div#cgit div.cgit-panel table { border-color: #555; background-color: #282828; }
+	div#cgit div.notes { border-color: #661; background-color: #220; }
+	div#cgit table.diffstat { border-color: #555; background-color: #282828; }
+	div#cgit table.diffstat td span.modechange { color: #c66; }
+	div#cgit table.diffstat td.add a { color: #6c6; }
+	div#cgit table.diffstat td.del a { color: #c66; }
+	div#cgit table.diffstat td.upd a { color: #3af; }
+	div#cgit table.diffstat td.graph td.add { background-color: #3a3; }
+	div#cgit table.diffstat td.graph td.rem { background-color: #a33; }
+	div#cgit div.diffstat-summary { color: #777; }
+	div#cgit table.diff td div.head { color: #eee; }
+	div#cgit table.diff td div.hunk { color: #28d; }
+	div#cgit table.diff td div.add { color: #6c6; }
+	div#cgit table.diff td div.del { color: #c66; }
+	div#cgit table.list td.reposection { color: #777; }
+	div#cgit ul.pager a { color: #888; }
+	div#cgit span.age-mins { color: #7f7; }
+	div#cgit span.age-hours { color: #7f7; }
+	div#cgit span.age-days { color: #9d9; }
+	div#cgit span.age-weeks { color: #bbb; }
+	div#cgit span.age-months { color: #888; }
+	div#cgit span.age-years { color: #666; }
+	div#cgit span.insertions { color: #7f7; }
+	div#cgit span.deletions { color: #e33; }
+	div#cgit div.footer { color: #555; }
+	div#cgit div.footer a { color: #555; }
+	div#cgit a.branch-deco { color: #fff; background-color: #361; border-color: #3b2; }
+	div#cgit a.tag-deco { color: #fff; background-color: #650; border-color: #ba3; }
+	div#cgit a.tag-annotated-deco { color: #fff; background-color: #840; border-color: #b96; }
+	div#cgit a.remote-deco { color: #fff; background-color: #348; border-color: #67c; }
+	div#cgit a.deco { color: #fff; background-color: #922; border-color: #d55; }
+	div#cgit a.branch-deco:hover, div#cgit table.list td a.branch-deco:hover,
+	div#cgit a.tag-deco:hover, div#cgit table.list td a.tag-deco:hover,
+	div#cgit a.tag-annotated-deco:hover, div#cgit table.list td a.tag-annotated-deco:hover,
+	div#cgit a.remote-deco:hover, div#cgit table.list td a.remote-deco:hover,
+	div#cgit a.deco:hover, div#cgit table.list td a.deco:hover { color: #fff; }
+	div#cgit table.stats { border-color: #555; }
+	div#cgit table.stats th { background-color: #333; border-color: #555; }
+	div#cgit table.stats td { border-color: #555; }
+	div#cgit table.stats td.sum { color: #5C7E9B; }
+	div#cgit table.vgraph { border-color: #eee; }
+	div#cgit table.vgraph th { background-color: #1f1f1f; border-color: black; }
+	div#cgit table.vgraph div.bar { background-color: #1f1f1f; }
+	div#cgit table.hgraph { border-color: #eee; }
+	div#cgit table.hgraph th { background-color: #1f1f1f; border-color: #eee; }
+	div#cgit table.hgraph div.bar { background-color: #1f1f1f; }
+	div#cgit table.ssdiff td { border-left-color: #555; border-right-color: #555; }
+	div#cgit table.ssdiff td.add { color: #eee; background: #353; }
+	div#cgit table.ssdiff td.add_dark { color: #eee; background: #030; }
+	div#cgit table.ssdiff span.add { background: #030; }
+	div#cgit table.ssdiff td.del { color: #eee; background: #533; }
+	div#cgit table.ssdiff td.del_dark { color: #eee; background: #411; }
+	div#cgit table.ssdiff span.del { background: #300; }
+	div#cgit table.ssdiff td.changed { color: #eee; background: #553; }
+	div#cgit table.ssdiff td.changed_dark { color: #eee; background: #330; }
+	div#cgit table.ssdiff td.lineno { color: #eee; background: #1f1f1f; }
+	div#cgit table.ssdiff td.hunk { color: #eee; background: #0D3D64; border-top-color: #555; border-bottom-color: #555; }
+	div#cgit table.ssdiff td.head { border-top-color: #555; border-bottom-color: #555; }
+	div#cgit table.ssdiff td.head div.head { color: #eee; }
+	div#cgit table.ssdiff td.foot { border-top-color: #555; }
+}
diff --git a/filters/html-converters/md2html b/filters/html-converters/md2html
index 59f43a8..627808a 100755
--- a/filters/html-converters/md2html
+++ b/filters/html-converters/md2html
@@ -4,6 +4,11 @@ import sys
 import io
 from pygments.formatters import HtmlFormatter
 from markdown.extensions.toc import TocExtension
+
+# The dark style is automatically selected if the browser is in dark mode
+light_style='pastie'
+dark_style='monokai'
+
 sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8')
 sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
 sys.stdout.write('''
@@ -283,10 +288,31 @@ div#cgit .markdown-body h1 a.toclink, div#cgit .markdown-body h2 a.toclink, div#
     background-color: transparent;
     border: none;
 }
+@media only all and (prefers-color-scheme: dark) {
+.markdown-body a.absent { color: #f33; }
+.markdown-body h1 .mini-icon-link, .markdown-body h2 .mini-icon-link, .markdown-body h3 .mini-icon-link, .markdown-body h4 .mini-icon-link, .markdown-body h5 .mini-icon-link, .markdown-body h6 .mini-icon-link { color: #eee; }
+div#cgit .markdown-body h1 a.toclink, div#cgit .markdown-body h2 a.toclink, div#cgit .markdown-body h3 a.toclink, div#cgit .markdown-body h4 a.toclink, div#cgit .markdown-body h5 a.toclink, div#cgit .markdown-body h6 a.toclink { color: #eee; }
+.markdown-body h1 { color: #eee; }
+.markdown-body h2 { border-bottom-color: #333; color: #eee; }
+.markdown-body h6 { color: #888; }
+.markdown-body hr { border-color: #333; }
+.markdown-body blockquote { border-left-color: #222; color: #888; }
+.markdown-body table th, .markdown-body table td { border-color: #333; }
+.markdown-body table tr { border-top-color: #333; background-color: #111; }
+.markdown-body table tr:nth-child(2n) { background-color: #070707; }
+.markdown-body span.frame span span { color: #ccc; }
+.markdown-body code, .markdown-body tt { border-color: #151515; background-color: #070707; }
+.markdown-body .highlight pre, .markdown-body pre { background-color: #070707; border-color: #333; }
 ''')
-sys.stdout.write(HtmlFormatter(style='pastie').get_style_defs('.highlight'))
+sys.stdout.write(HtmlFormatter(style=dark_style).get_style_defs('.highlight'))
 sys.stdout.write('''
-</style>   
+}
+@media (prefers-color-scheme: light) {
+''')
+sys.stdout.write(HtmlFormatter(style=light_style).get_style_defs('.highlight'))
+sys.stdout.write('''
+}
+</style>
 ''')
 sys.stdout.write("<div class='markdown-body'>")
 sys.stdout.flush()
diff --git a/filters/syntax-highlighting.py b/filters/syntax-highlighting.py
index e912594..f2c0fe1 100755
--- a/filters/syntax-highlighting.py
+++ b/filters/syntax-highlighting.py
@@ -29,12 +29,16 @@ from pygments.lexers import guess_lexer
 from pygments.lexers import guess_lexer_for_filename
 from pygments.formatters import HtmlFormatter
 
+# The dark style is automatically selected if the browser is in dark mode
+light_style='pastie'
+dark_style='monokai'
 
 sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8', errors='replace')
 sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace')
 data = sys.stdin.read()
 filename = sys.argv[1]
-formatter = HtmlFormatter(style='pastie', nobackground=True)
+light_formatter = HtmlFormatter(style=light_style, nobackground=True)
+dark_formatter = HtmlFormatter(style=dark_style, nobackground=True)
 
 try:
 	lexer = guess_lexer_for_filename(filename, data)
@@ -50,6 +54,10 @@ except TypeError:
 # highlight! :-)
 # printout pygments' css definitions as well
 sys.stdout.write('<style>')
-sys.stdout.write(formatter.get_style_defs('.highlight'))
+sys.stdout.write('\n@media only all and (prefers-color-scheme: dark) {\n')
+sys.stdout.write(dark_formatter.get_style_defs('.highlight'))
+sys.stdout.write('\n}\n@media (prefers-color-scheme: light) {\n')
+sys.stdout.write(light_formatter.get_style_defs('.highlight'))
+sys.stdout.write('\n}\n')
 sys.stdout.write('</style>')
-sys.stdout.write(highlight(data, lexer, formatter, outfile=None))
+sys.stdout.write(highlight(data, lexer, light_formatter, outfile=None))
diff --git a/filters/syntax-highlighting.sh b/filters/syntax-highlighting.sh
index 840bc34..0429b0f 100755
--- a/filters/syntax-highlighting.sh
+++ b/filters/syntax-highlighting.sh
@@ -25,6 +25,20 @@
 # table.blob .kwb  { color:#830000; }
 # table.blob .kwc  { color:#000000; font-weight:bold; }
 # table.blob .kwd  { color:#010181; }
+# @media only all and (prefers-color-scheme: dark) { /* cgit addition for dark mode */
+# 	table.blob .num  { color:#ff814f; }
+# 	table.blob .esc  { color:#f60; }
+# 	table.blob .str  { color:#cc0; }
+# 	table.blob .dstr { color:#ffff7e; }
+# 	table.blob .slc  { color:#7f7c7f; }
+# 	table.blob .com  { color:#7e7c7e; }
+# 	table.blob .dir  { color:#7dff7d; }
+# 	table.blob .sym  { color:#eeeeee; }
+# 	table.blob .kwa  { color:#bb0; }
+# 	table.blob .kwb  { color:#0a0; }
+# 	table.blob .kwc  { color:#eeeeee; }
+# 	table.blob .kwd  { color:#7e7efe; }
+# }
 #
 #
 # Style definition file generated by highlight 2.6.14, http://www.andre-simon.de/
@@ -45,45 +59,57 @@
 # .hl.kwb  { color:#830000; }
 # .hl.kwc  { color:#000000; font-weight:bold; }
 # .hl.kwd  { color:#010181; }
+# @media only all and (prefers-color-scheme: dark) { /* cgit addition for dark mode */
+# 	pre.hl  { color:#eeeeee; background-color:#111; }
+# 	.hl.num  { color:#ff814f; }
+# 	.hl.esc  { color:#f60; }
+# 	.hl.str  { color:#cc0; }
+# 	.hl.dstr { color:#ffff7e; }
+# 	.hl.slc  { color:#7f7c7f; }
+# 	.hl.com  { color:#7e7c7e; }
+# 	.hl.dir  { color:#7dff7d; }
+# 	.hl.sym  { color:#eeeeee; }
+# 	.hl.line { color:#aaaaaa; }
+# 	.hl.mark { background-color:#444400; }
+# 	.hl.kwa  { color:#bb0; }
+# 	.hl.kwb  { color:#a0a; }
+# 	.hl.kwc  { color:#eeeeee; }
+# 	.hl.kwd  { color:#7e7efe; }
+# }
 #
 #
-# Style definition file generated by highlight 3.8, http://www.andre-simon.de/
+# Style definition file generated by highlight 3.8 / 3.13 / 3.41, http://www.andre-simon.de/
 #
-# body.hl { background-color:#e0eaee; }
-# pre.hl  { color:#000000; background-color:#e0eaee; font-size:10pt; font-family:'Courier New';}
-# .hl.num { color:#b07e00; }
-# .hl.esc { color:#ff00ff; }
-# .hl.str { color:#bf0303; }
-# .hl.pps { color:#818100; }
-# .hl.slc { color:#838183; font-style:italic; }
-# .hl.com { color:#838183; font-style:italic; }
-# .hl.ppc { color:#008200; }
-# .hl.opt { color:#000000; }
-# .hl.lin { color:#555555; }
-# .hl.kwa { color:#000000; font-weight:bold; }
-# .hl.kwb { color:#0057ae; }
-# .hl.kwc { color:#000000; font-weight:bold; }
-# .hl.kwd { color:#010181; }
-#
-#
-# Style definition file generated by highlight 3.13, http://www.andre-simon.de/
-#
-# body.hl { background-color:#e0eaee; }
-# pre.hl  { color:#000000; background-color:#e0eaee; font-size:10pt; font-family:'Courier New',monospace;}
-# .hl.num { color:#b07e00; }
-# .hl.esc { color:#ff00ff; }
-# .hl.str { color:#bf0303; }
-# .hl.pps { color:#818100; }
-# .hl.slc { color:#838183; font-style:italic; }
-# .hl.com { color:#838183; font-style:italic; }
-# .hl.ppc { color:#008200; }
-# .hl.opt { color:#000000; }
-# .hl.ipl { color:#0057ae; }
-# .hl.lin { color:#555555; }
-# .hl.kwa { color:#000000; font-weight:bold; }
-# .hl.kwb { color:#0057ae; }
-# .hl.kwc { color:#000000; font-weight:bold; }
-# .hl.kwd { color:#010181; }
+# table.blob .num { color:#b07e00; }
+# table.blob .esc { color:#ff00ff; }
+# table.blob .str { color:#bf0303; }
+# table.blob .pps { color:#818100; }
+# table.blob .slc { color:#838183; font-style:italic; }
+# table.blob .com { color:#838183; font-style:italic; }
+# table.blob .ppc { color:#008200; }
+# table.blob .opt { color:#000000; }
+# table.blob .ipl { color:#0057ae; }
+# table.blob .lin { color:#555555; }
+# table.blob .kwa { color:#000000; font-weight:bold; }
+# table.blob .kwb { color:#0057ae; }
+# table.blob .kwc { color:#000000; font-weight:bold; }
+# table.blob .kwd { color:#010181; }
+# @media only all and (prefers-color-scheme: dark) { /* cgit addition for dark mode */
+# 	table.blob .num { color:#ff814f; }
+# 	table.blob .esc { color:#f60; }
+# 	table.blob .str { color:#cc0; }
+# 	table.blob .pps { color:#ffff7f; }
+# 	table.blob .slc { color:#7f7c7f; }
+# 	table.blob .com { color:#7e7c7e; }
+# 	table.blob .ppc { color:#8dd; }
+# 	table.blob .opt { color:#eeeeee; }
+# 	table.blob .ipl { color:#51a8ff; }
+# 	table.blob .lin { color:#aaaaaa; }
+# 	table.blob .kwa { color:#bb0; }
+# 	table.blob .kwb { color:#0a0; }
+# 	table.blob .kwc { color:#eeeeee; }
+# 	table.blob .kwd { color:#7e7efe; }
+# }
 #
 #
 # The following environment variables can be used to retrieve the configuration