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index 4f547b1..f14fe05 100644
--- a/css/apprentice/apprentice-all-sites.css
+++ b/css/apprentice/apprentice-all-sites.css
@@ -1351,6 +1351,66 @@ div#page div#header a {
 .post pre.mode-line {
   overflow: visible !important;
 }
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+  background-color: #262626 !important;
+}
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+}
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+}
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+}
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+}
 #sr-header-area {
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new file mode 100644
index 0000000..6b71325
--- /dev/null
+++ b/css/apprentice/apprentice-readthedocs.io.css
@@ -0,0 +1,89 @@
+* {
+  border-color: #800080 !important;
+}
+a {
+  color: #5f87af !important;
+}
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+  color: #87af87 !important;
+}
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+  background-color: #262626 !important;
+  color: #bcbcbc !important;
+}
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+}
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+textarea {
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+  color: #bcbcbc !important;
+}
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+  color: #bcbcbc !important;
+}
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+}
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+}
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index 471264d..37eca08 100644
--- a/css/darculized/darculized-all-sites.css
+++ b/css/darculized/darculized-all-sites.css
@@ -1351,6 +1351,66 @@ div#page div#header a {
 .post pre.mode-line {
   overflow: visible !important;
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+}
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+  background-color: #2e2e2e !important;
+}
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+background-color highlight-extra,
+.wy-alert-title,
+.rst-content .admonition-title {
+  color: #262626 !important;
+}
 #sr-header-area {
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new file mode 100644
index 0000000..1f6d50b
--- /dev/null
+++ b/css/darculized/darculized-readthedocs.io.css
@@ -0,0 +1,89 @@
+* {
+  border-color: #909396 !important;
+}
+a {
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+}
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+  color: #b68800 !important;
+}
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+  color: #909396 !important;
+}
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+  background-color: #262626 !important;
+}
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+textarea {
+  background-color: #2e2e2e !important;
+  color: #909396 !important;
+}
+blockquote,
+pre {
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+  color: #909396 !important;
+}
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+}
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+}
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+}
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+}
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+}
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index f1bbce2..807f549 100644
--- a/css/gruvbox/gruvbox-all-sites.css
+++ b/css/gruvbox/gruvbox-all-sites.css
@@ -1351,6 +1351,66 @@ div#page div#header a {
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+}
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+}
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+}
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+}
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+background-color highlight-extra,
+.wy-alert-title,
+.rst-content .admonition-title {
+  color: #282828 !important;
+}
 #sr-header-area {
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 }
diff --git a/css/gruvbox/gruvbox-readthedocs.io.css b/css/gruvbox/gruvbox-readthedocs.io.css
new file mode 100644
index 0000000..03f7c83
--- /dev/null
+++ b/css/gruvbox/gruvbox-readthedocs.io.css
@@ -0,0 +1,89 @@
+* {
+  border-color: #fabd2f !important;
+}
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+}
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+}
+body {
+  background-color: #282828 !important;
+  color: #83a598 !important;
+}
+html {
+  background-color: #282828 !important;
+}
+input,
+textarea {
+  background-color: #3c3836 !important;
+  color: #83a598 !important;
+}
+blockquote,
+pre {
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+  color: #83a598 !important;
+}
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+}
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+}
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+  background-color: #b8bb26 !important;
+}
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+}
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diff --git a/css/solarized-dark/solarized-dark-all-sites.css b/css/solarized-dark/solarized-dark-all-sites.css
index 6665ac3..8050328 100644
--- a/css/solarized-dark/solarized-dark-all-sites.css
+++ b/css/solarized-dark/solarized-dark-all-sites.css
@@ -1351,6 +1351,66 @@ div#page div#header a {
 .post pre.mode-line {
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+}
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+}
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+}
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+}
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+.rst-content .wy-alert-info.tip .admonition-title,
+.rst-content .wy-alert-info.tip .wy-alert-title,
+.rst-content .wy-alert-info.warning .admonition-title,
+.rst-content .wy-alert-info.warning .wy-alert-title,
+.rst-content .wy-alert.wy-alert-info .admonition-title,
+.wy-alert.wy-alert-info .rst-content .admonition-title,
+.wy-alert.wy-alert-info .wy-alert-title,
+background-color highlight-extra,
+.wy-alert-title,
+.rst-content .admonition-title {
+  color: #002b36 !important;
+}
 #sr-header-area {
   background-color: #073642 !important;
 }
diff --git a/css/solarized-dark/solarized-dark-readthedocs.io.css b/css/solarized-dark/solarized-dark-readthedocs.io.css
new file mode 100644
index 0000000..b7d28c4
--- /dev/null
+++ b/css/solarized-dark/solarized-dark-readthedocs.io.css
@@ -0,0 +1,89 @@
+* {
+  border-color: #657b83 !important;
+}
+a {
+  color: #268bd2 !important;
+}
+a:visited {
+  color: #6c71c4 !important;
+}
+body {
+  background-color: #002b36 !important;
+  color: #839496 !important;
+}
+html {
+  background-color: #002b36 !important;
+}
+input,
+textarea {
+  background-color: #073642 !important;
+  color: #839496 !important;
+}
+blockquote,
+pre {
+  background-color: #073642 !important;
+  color: #839496 !important;
+}
+/* main content */
+.wy-nav-content {
+  background-color: #002b36 !important;
+}
+/* sidebar navigation */
+.wy-menu-vertical li.current a {
+  background-color: #073642 !important;
+}
+.wy-menu-vertical li.on a,
+.wy-menu-vertical li.current>a {
+  background-color: #586e75 !important;
+}
+/* notes and alert boxes */
+.rst-content .guilabel,
+.rst-content .seealso,
+.rst-content .note,
+.rst-content .tip,
+.rst-content .warning,
+.rst-content .wy-alert-info.admonition,
+.rst-content .wy-alert-info.admonition-todo,
+.rst-content .wy-alert-info.attention,
+.rst-content .wy-alert-info.caution,
+.rst-content .wy-alert-info.danger,
+.rst-content .wy-alert-info.error,
+.rst-content .wy-alert-info.hint,
+.rst-content .wy-alert-info.important,
+.rst-content .wy-alert-info.tip,
+.rst-content .wy-alert-info.warning,
+.wy-alert.wy-alert-info {
+  background-color: #073642 !important;
+}
+.rst-content .note .admonition-title,
+.rst-content .note .wy-alert-title,
+.rst-content .seealso .admonition-title,
+.rst-content .seealso .wy-alert-title,
+.rst-content .wy-alert-info.admonition .admonition-title,
+.rst-content .wy-alert-info.admonition .wy-alert-title,
+.rst-content .wy-alert-info.admonition-todo .admonition-title,
+.rst-content .wy-alert-info.admonition-todo .wy-alert-title,
+.rst-content .wy-alert-info.attention .admonition-title,
+.rst-content .wy-alert-info.attention .wy-alert-title,
+.rst-content .wy-alert-info.caution .admonition-title,
+.rst-content .wy-alert-info.caution .wy-alert-title,
+.rst-content .wy-alert-info.danger .admonition-title,
+.rst-content .wy-alert-info.danger .wy-alert-title,
+.rst-content .wy-alert-info.error .admonition-title,
+.rst-content .wy-alert-info.error .wy-alert-title,
+.rst-content .wy-alert-info.hint .admonition-title,
+.rst-content .wy-alert-info.hint .wy-alert-title,
+.rst-content .wy-alert-info.important .admonition-title,
+.rst-content .wy-alert-info.important .wy-alert-title,
+.rst-content .wy-alert-info.tip .admonition-title,
+.rst-content .wy-alert-info.tip .wy-alert-title,
+.rst-content .wy-alert-info.warning .admonition-title,
+.rst-content .wy-alert-info.warning .wy-alert-title,
+.rst-content .wy-alert.wy-alert-info .admonition-title,
+.wy-alert.wy-alert-info .rst-content .admonition-title,
+.wy-alert.wy-alert-info .wy-alert-title,
+background-color highlight-extra,
+.wy-alert-title,
+.rst-content .admonition-title {
+  color: #002b36 !important;
+}
diff --git a/css/solarized-light/solarized-light-all-sites.css b/css/solarized-light/solarized-light-all-sites.css
index e1a638a..6644018 100644
--- a/css/solarized-light/solarized-light-all-sites.css
+++ b/css/solarized-light/solarized-light-all-sites.css
@@ -1351,6 +1351,66 @@ div#page div#header a {
 .post pre.mode-line {
   overflow: visible !important;
 }
+.wy-nav-content {
+  background-color: #fdf6e3 !important;
+}
+.wy-menu-vertical li.current a {
+  background-color: #eee8d5 !important;
+}
+.wy-menu-vertical li.on a,
+.wy-menu-vertical li.current>a {
+  background-color: #93a1a1 !important;
+}
+.rst-content .guilabel,
+.rst-content .seealso,
+.rst-content .note,
+.rst-content .tip,
+.rst-content .warning,
+.rst-content .wy-alert-info.admonition,
+.rst-content .wy-alert-info.admonition-todo,
+.rst-content .wy-alert-info.attention,
+.rst-content .wy-alert-info.caution,
+.rst-content .wy-alert-info.danger,
+.rst-content .wy-alert-info.error,
+.rst-content .wy-alert-info.hint,
+.rst-content .wy-alert-info.important,
+.rst-content .wy-alert-info.tip,
+.rst-content .wy-alert-info.warning,
+.wy-alert.wy-alert-info {
+  background-color: #eee8d5 !important;
+}
+.rst-content .note .admonition-title,
+.rst-content .note .wy-alert-title,
+.rst-content .seealso .admonition-title,
+.rst-content .seealso .wy-alert-title,
+.rst-content .wy-alert-info.admonition .admonition-title,
+.rst-content .wy-alert-info.admonition .wy-alert-title,
+.rst-content .wy-alert-info.admonition-todo .admonition-title,
+.rst-content .wy-alert-info.admonition-todo .wy-alert-title,
+.rst-content .wy-alert-info.attention .admonition-title,
+.rst-content .wy-alert-info.attention .wy-alert-title,
+.rst-content .wy-alert-info.caution .admonition-title,
+.rst-content .wy-alert-info.caution .wy-alert-title,
+.rst-content .wy-alert-info.danger .admonition-title,
+.rst-content .wy-alert-info.danger .wy-alert-title,
+.rst-content .wy-alert-info.error .admonition-title,
+.rst-content .wy-alert-info.error .wy-alert-title,
+.rst-content .wy-alert-info.hint .admonition-title,
+.rst-content .wy-alert-info.hint .wy-alert-title,
+.rst-content .wy-alert-info.important .admonition-title,
+.rst-content .wy-alert-info.important .wy-alert-title,
+.rst-content .wy-alert-info.tip .admonition-title,
+.rst-content .wy-alert-info.tip .wy-alert-title,
+.rst-content .wy-alert-info.warning .admonition-title,
+.rst-content .wy-alert-info.warning .wy-alert-title,
+.rst-content .wy-alert.wy-alert-info .admonition-title,
+.wy-alert.wy-alert-info .rst-content .admonition-title,
+.wy-alert.wy-alert-info .wy-alert-title,
+background-color highlight-extra,
+.wy-alert-title,
+.rst-content .admonition-title {
+  color: #fdf6e3 !important;
+}
 #sr-header-area {
   background-color: #eee8d5 !important;
 }
diff --git a/css/solarized-light/solarized-light-readthedocs.io.css b/css/solarized-light/solarized-light-readthedocs.io.css
new file mode 100644
index 0000000..e93e9f6
--- /dev/null
+++ b/css/solarized-light/solarized-light-readthedocs.io.css
@@ -0,0 +1,89 @@
+* {
+  border-color: #839496 !important;
+}
+a {
+  color: #268bd2 !important;
+}
+a:visited {
+  color: #6c71c4 !important;
+}
+body {
+  background-color: #fdf6e3 !important;
+  color: #657b83 !important;
+}
+html {
+  background-color: #fdf6e3 !important;
+}
+input,
+textarea {
+  background-color: #eee8d5 !important;
+  color: #657b83 !important;
+}
+blockquote,
+pre {
+  background-color: #eee8d5 !important;
+  color: #657b83 !important;
+}
+/* main content */
+.wy-nav-content {
+  background-color: #fdf6e3 !important;
+}
+/* sidebar navigation */
+.wy-menu-vertical li.current a {
+  background-color: #eee8d5 !important;
+}
+.wy-menu-vertical li.on a,
+.wy-menu-vertical li.current>a {
+  background-color: #93a1a1 !important;
+}
+/* notes and alert boxes */
+.rst-content .guilabel,
+.rst-content .seealso,
+.rst-content .note,
+.rst-content .tip,
+.rst-content .warning,
+.rst-content .wy-alert-info.admonition,
+.rst-content .wy-alert-info.admonition-todo,
+.rst-content .wy-alert-info.attention,
+.rst-content .wy-alert-info.caution,
+.rst-content .wy-alert-info.danger,
+.rst-content .wy-alert-info.error,
+.rst-content .wy-alert-info.hint,
+.rst-content .wy-alert-info.important,
+.rst-content .wy-alert-info.tip,
+.rst-content .wy-alert-info.warning,
+.wy-alert.wy-alert-info {
+  background-color: #eee8d5 !important;
+}
+.rst-content .note .admonition-title,
+.rst-content .note .wy-alert-title,
+.rst-content .seealso .admonition-title,
+.rst-content .seealso .wy-alert-title,
+.rst-content .wy-alert-info.admonition .admonition-title,
+.rst-content .wy-alert-info.admonition .wy-alert-title,
+.rst-content .wy-alert-info.admonition-todo .admonition-title,
+.rst-content .wy-alert-info.admonition-todo .wy-alert-title,
+.rst-content .wy-alert-info.attention .admonition-title,
+.rst-content .wy-alert-info.attention .wy-alert-title,
+.rst-content .wy-alert-info.caution .admonition-title,
+.rst-content .wy-alert-info.caution .wy-alert-title,
+.rst-content .wy-alert-info.danger .admonition-title,
+.rst-content .wy-alert-info.danger .wy-alert-title,
+.rst-content .wy-alert-info.error .admonition-title,
+.rst-content .wy-alert-info.error .wy-alert-title,
+.rst-content .wy-alert-info.hint .admonition-title,
+.rst-content .wy-alert-info.hint .wy-alert-title,
+.rst-content .wy-alert-info.important .admonition-title,
+.rst-content .wy-alert-info.important .wy-alert-title,
+.rst-content .wy-alert-info.tip .admonition-title,
+.rst-content .wy-alert-info.tip .wy-alert-title,
+.rst-content .wy-alert-info.warning .admonition-title,
+.rst-content .wy-alert-info.warning .wy-alert-title,
+.rst-content .wy-alert.wy-alert-info .admonition-title,
+.wy-alert.wy-alert-info .rst-content .admonition-title,
+.wy-alert.wy-alert-info .wy-alert-title,
+background-color highlight-extra,
+.wy-alert-title,
+.rst-content .admonition-title {
+  color: #fdf6e3 !important;
+}
diff --git a/sites/readthedocs.io.styl b/sites/readthedocs.io.styl
new file mode 100644
index 0000000..6889f4f
--- /dev/null
+++ b/sites/readthedocs.io.styl
@@ -0,0 +1,65 @@
+// * readthedocs.io.styl
+
+/* main content */
+.wy-nav-content
+    background-color()
+
+/* sidebar navigation */
+.wy-menu-vertical li.current a
+    background-color highlight
+
+.wy-menu-vertical li.on a,
+.wy-menu-vertical li.current>a
+    background-color highlight-extra
+
+/* notes and alert boxes */
+.rst-content .guilabel,
+.rst-content .seealso,
+.rst-content .note,
+.rst-content .tip,
+.rst-content .warning,
+.rst-content .wy-alert-info.admonition,
+.rst-content .wy-alert-info.admonition-todo,
+.rst-content .wy-alert-info.attention,
+.rst-content .wy-alert-info.caution,
+.rst-content .wy-alert-info.danger,
+.rst-content .wy-alert-info.error,
+.rst-content .wy-alert-info.hint,
+.rst-content .wy-alert-info.important,
+.rst-content .wy-alert-info.tip,
+.rst-content .wy-alert-info.warning,
+.wy-alert.wy-alert-info
+    background-color highlight
+
+.rst-content .note .admonition-title,
+.rst-content .note .wy-alert-title,
+.rst-content .seealso .admonition-title,
+.rst-content .seealso .wy-alert-title,
+.rst-content .wy-alert-info.admonition .admonition-title
+.rst-content .wy-alert-info.admonition .wy-alert-title,
+.rst-content .wy-alert-info.admonition-todo .admonition-title,
+.rst-content .wy-alert-info.admonition-todo .wy-alert-title,
+.rst-content .wy-alert-info.attention .admonition-title,
+.rst-content .wy-alert-info.attention .wy-alert-title,
+.rst-content .wy-alert-info.caution .admonition-title,
+.rst-content .wy-alert-info.caution .wy-alert-title,
+.rst-content .wy-alert-info.danger .admonition-title,
+.rst-content .wy-alert-info.danger .wy-alert-title,
+.rst-content .wy-alert-info.error .admonition-title,
+.rst-content .wy-alert-info.error .wy-alert-title,
+.rst-content .wy-alert-info.hint .admonition-title,
+.rst-content .wy-alert-info.hint .wy-alert-title,
+.rst-content .wy-alert-info.important .admonition-title,
+.rst-content .wy-alert-info.important .wy-alert-title,
+.rst-content .wy-alert-info.tip .admonition-title,
+.rst-content .wy-alert-info.tip .wy-alert-title,
+.rst-content .wy-alert-info.warning .admonition-title,
+.rst-content .wy-alert-info.warning .wy-alert-title,
+.rst-content .wy-alert.wy-alert-info .admonition-title,
+.wy-alert.wy-alert-info .rst-content .admonition-title,
+.wy-alert.wy-alert-info .wy-alert-title,
+    background-color highlight-extra
+
+.wy-alert-title,
+.rst-content .admonition-title
+    color color-background