diff --git a/themes/learn2/css/.custom.css.swp b/themes/learn2/css/.custom.css.swp
deleted file mode 100644
index bab8bae..0000000
Binary files a/themes/learn2/css/.custom.css.swp and /dev/null differ
diff --git a/themes/learn2/css/custom.css b/themes/learn2/css/custom.css
index 0e786c9..ed4a92d 100644
--- a/themes/learn2/css/custom.css
+++ b/themes/learn2/css/custom.css
@@ -159,3 +159,8 @@ blockquote {
 .highlightable {
     overflow: auto;
 }
+
+/* table headings */
+thead {
+	color: #111111;
+}