Differentiate the colour of previously-visited hyperlinks (#11390)

Add ``a:visited`` to the CSS templates

sphinx/themes/agogo/static/agogo.css_t

@@ -41,6 +41,10 @@ a {
   color: {{ theme_linkcolor }};
 }
 
+a:visited {
+  color: #551a8b;
+}
+
 div.bodywrapper a, div.footer a {
   text-decoration: underline;
 }

sphinx/themes/basic/static/basic.css_t

@@ -237,6 +237,10 @@ a.headerlink {
     visibility: hidden;
 }
 
+a:visited {
+    color: #551A8B;
+}
+
 h1:hover > a.headerlink,
 h2:hover > a.headerlink,
 h3:hover > a.headerlink,

sphinx/themes/bizstyle/static/bizstyle.css_t

@@ -181,6 +181,10 @@ a:hover {
     text-decoration: underline;
 }
 
+a:visited {
+    color: #551a8b;
+}
+
 div.body a {
     text-decoration: underline;
 }

sphinx/themes/classic/theme.conf

@@ -24,7 +24,7 @@ headbgcolor      = #f2f2f2
 headtextcolor    = #20435c
 headlinkcolor    = #c60f0f
 linkcolor        = #355f7c
-visitedlinkcolor = #355f7c
+visitedlinkcolor = #551a8b
 codebgcolor      = unset
 codetextcolor    = unset
 

sphinx/themes/epub/static/epub.css_t

@@ -26,11 +26,16 @@ div.clearer {
     clear: both;
 }
 
-a:link, a:visited {
+a:link {
     color: #3333ff;
     text-decoration: underline;
 }
 
+a:visited {
+    color: #551a8b;
+    text-decoration: underline;
+} 
+
 img {
     border: 0;
     max-width: 100%;

sphinx/themes/haiku/theme.conf

@@ -10,5 +10,5 @@ body_max_width    = 70em
 textcolor         = #333333
 headingcolor      = #0c3762
 linkcolor         = #dc3c01
-visitedlinkcolor  = #892601
+visitedlinkcolor  = #551a8b
 hoverlinkcolor    = #ff4500

sphinx/themes/nature/static/nature.css_t

@@ -142,6 +142,10 @@ a:hover {
     text-decoration: underline;
 }
 
+a:visited {
+    color: #551A8B;
+}
+
 div.body h1,
 div.body h2,
 div.body h3,

sphinx/themes/nonav/static/nonav.css_t

@@ -15,11 +15,16 @@ div.clearer {
     clear: both;
 }
 
-a:link, a:visited {
+a:link {
     color: #3333ff;
     text-decoration: underline;
 }
 
+a:visited {
+    color: #551a8b;
+    text-decoration: underline;
+}
+
 img {
     border: 0;
     max-width: 100%;

sphinx/themes/pyramid/static/pyramid.css_t

@@ -181,6 +181,10 @@ a:hover, a:hover .pre {
     text-decoration: underline;
 }
 
+a:visited {
+    color: #551a8b;
+}
+
 div.body h1,
 div.body h2,
 div.body h3,

sphinx/themes/scrolls/static/scrolls.css_t

@@ -187,6 +187,10 @@ a:hover {
     color: {{ theme_visitedlinkcolor }};
 }
 
+a:visited {
+    color: {{ theme_visitedlinkcolor }};
+}
+
 pre {
     background-image: url(metal.png);
     border-top: 1px solid #ccc;

sphinx/themes/scrolls/theme.conf

@@ -9,5 +9,5 @@ body_max_width = 680
 headerbordercolor = #1752b4
 subheadlinecolor  = #0d306b
 linkcolor         = #1752b4
-visitedlinkcolor  = #444
+visitedlinkcolor  = #551a8b
 admonitioncolor   = #28437f

sphinx/themes/sphinxdoc/static/sphinxdoc.css_t

@@ -151,6 +151,10 @@ a:hover {
     color: #2491CF;
 }
 
+a:visited {
+    color: #551A8B;
+}
+
 div.body a {
     text-decoration: underline;
 }