docs: refresh and improve the "named data" sphinx theme

Change-Id: I6c04bb94e33191a2b0d32e0d7bc61ab44af9d84d
diff --git a/docs/named_data_theme/theme.conf b/docs/named_data_theme/theme.conf
index aa5a7ff..1ff65dd 100644
--- a/docs/named_data_theme/theme.conf
+++ b/docs/named_data_theme/theme.conf
@@ -1,15 +1,12 @@
 [theme]
 inherit = agogo
-stylesheet = named_data_style.css
-# pygments_style = sphinx
-
-theme_bodyfont = "normal 12px Verdana, sans-serif"
-theme_bgcolor = "#ccc"
-
-theme_documentwidth = "100%"
-theme_textalign = "left"
+stylesheet = named_data.css
 
 [options]
-
-stickysidebar = true
-collapsiblesidebar = true
+pagewidth = 90%
+documentwidth = 70%
+sidebarwidth = 20%
+bgcolor = white
+headerbg = none
+footerbg = none
+textalign = left