diff --git a/Documentation/conf.py b/Documentation/conf.py
index b691af4831fa..89946361e545 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -259,7 +259,7 @@ latex_elements = {
 'papersize': 'a4paper',
 
 # The font size ('10pt', '11pt' or '12pt').
-'pointsize': '8pt',
+'pointsize': '11pt',
 
 # Latex figure (float) alignment
 #'figure_align': 'htbp',
@@ -272,8 +272,8 @@ latex_elements = {
     'preamble': '''
 	% Use some font with UTF-8 support with XeLaTeX
         \\usepackage{fontspec}
-        \\setsansfont{DejaVu Serif}
-        \\setromanfont{DejaVu Sans}
+        \\setsansfont{DejaVu Sans}
+        \\setromanfont{DejaVu Serif}
         \\setmonofont{DejaVu Sans Mono}
 
      '''
diff --git a/Documentation/sphinx-static/theme_overrides.css b/Documentation/sphinx-static/theme_overrides.css
index 522b6d4c49d4..e21e36cd6761 100644
--- a/Documentation/sphinx-static/theme_overrides.css
+++ b/Documentation/sphinx-static/theme_overrides.css
@@ -4,6 +4,44 @@
  *
  */
 
+/* Improve contrast and increase size for easier reading. */
+
+body {
+	font-family: serif;
+	color: black;
+	font-size: 100%;
+}
+
+h1, h2, .rst-content .toctree-wrapper p.caption, h3, h4, h5, h6, legend {
+	font-family: sans-serif;
+}
+
+.wy-menu-vertical li.current a {
+	color: #505050;
+}
+
+.wy-menu-vertical li.on a, .wy-menu-vertical li.current > a {
+	color: #303030;
+}
+
+div[class^="highlight"] pre {
+	font-family: monospace;
+	color: black;
+	font-size: 100%;
+}
+
+.wy-menu-vertical {
+	font-family: sans-serif;
+}
+
+.c {
+	font-style: normal;
+}
+
+p {
+	font-size: 100%;
+}
+
 /* Interim: Code-blocks with line nos - lines and line numbers don't line up.
  * see: https://github.com/rtfd/sphinx_rtd_theme/issues/419
  */