Skinnify headings

themes/tiddlywiki/snowwhite/base.tid

@@ -77,6 +77,7 @@ body {
 
 h1, h2, h3, h4, h5, h6 {
 	line-height: 1em;
+	font-weight: 300;
 }
 
 code, pre {
@@ -254,6 +255,7 @@ a.tw-tiddlylink-external {
 	display: inline-block;
 	padding: 2px 9px;
 	font-size: 11.844px;
+	font-weight: 300;
 	line-height: 14px;
 	color: #fff;
 	white-space: nowrap;