RTD: fix yellow code blocks (which should be grey)
@@ -91,7 +91,7 @@ exclude_patterns = ['_build']
#show_authors = False
# The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'default'
# A list of ignored prefixes for module index sorting.
#modindex_common_prefix = []
