diff --git a/themes/tiddlywiki/vanilla/base.tid b/themes/tiddlywiki/vanilla/base.tid
index 8107ecdbe..5b73c9c57 100644
--- a/themes/tiddlywiki/vanilla/base.tid
+++ b/themes/tiddlywiki/vanilla/base.tid
@@ -440,8 +440,8 @@ button svg.tc-image-button, button .tc-image-button img {
 	background: none;
 	border: none;
 	width: 100%;
-    width: calc(100% + 2px);
-    margin-left: -43px;
+	width: calc(100% + 2px);
+	margin-left: -43px;
 	text-align: center;
 	border-top: 2px solid <<colour tiddler-info-background>>;
 	margin-top: 4px;
@@ -470,8 +470,8 @@ button svg.tc-image-button, button .tc-image-button img {
 	width: 23px;
 	text-align: center;
 	margin-left: -35px;
-    top: 6px;
-    bottom: 6px;
+	top: 6px;
+	bottom: 6px;
 }
 
 .tc-fold-banner:hover {
@@ -482,13 +482,13 @@ button svg.tc-image-button, button .tc-image-button img {
 	
 	.tc-unfold-banner {
 		position: static;
-	    width: calc(100% + 59px);
-    }
+		width: calc(100% + 59px);
+	}
 
 	.tc-fold-banner {
 		width: 16px;
 		margin-left: -16px;
-	    font-size: 0.75em;
+		font-size: 0.75em;
 	}
 
 }
@@ -701,7 +701,7 @@ button.tc-untagged-label {
 <<if-no-sidebar "
 
 	.tc-story-river {
-        width: calc(100% - {{$:/themes/tiddlywiki/vanilla/metrics/storyleft}});
+		width: calc(100% - {{$:/themes/tiddlywiki/vanilla/metrics/storyleft}});
 	}
 
 ">>
@@ -969,22 +969,22 @@ html body.tc-body.tc-single-tiddler-window {
 */
 
 .tc-editor-toolbar {
-    margin-top: 8px;	
+	margin-top: 8px;	
 }
 
 .tc-editor-toolbar button {
 	vertical-align: middle;
 	background-color: <<colour tiddler-controls-foreground>>;
 	fill: <<colour tiddler-controls-foreground-selected>>;
-    border-radius: 4px;
-    padding: 3px;
-    margin: 2px 0;
+	border-radius: 4px;
+	padding: 3px;
+	margin: 2px 0;
 }
 
 .tc-editor-toolbar button.tc-text-editor-toolbar-item-adjunct {
     margin-left: -4px;
-    width: 1em;
-    border-radius: 8px;	
+	width: 1em;
+	border-radius: 8px;	
 }
 
 .tc-editor-toolbar button.tc-selected {
@@ -992,8 +992,8 @@ html body.tc-body.tc-single-tiddler-window {
 }
 
 .tc-editor-toolbar button svg {
-    width: 1.6em;
-    height: 1.2em;
+	width: 1.6em;
+	height: 1.2em;
 }
 
 .tc-editor-toolbar button:hover {
@@ -1388,7 +1388,7 @@ html body.tc-body.tc-single-tiddler-window {
 }
 
 .tc-search-results {
-    padding: 0 7px 0 7px;
+	padding: 0 7px 0 7px;
 }
 
 .tc-image-chooser, .tc-colour-chooser {
@@ -1399,7 +1399,7 @@ html body.tc-body.tc-single-tiddler-window {
 .tc-colour-chooser a {
 	display: inline-block;
 	vertical-align: top;
-    text-align: center;
+	text-align: center;
 	position: relative;
 }
 
@@ -1415,7 +1415,7 @@ html body.tc-body.tc-single-tiddler-window {
 	padding: 3px;
 	width: 2em;
 	height: 2em;
-    vertical-align: middle;
+	vertical-align: middle;
 }
 
 .tc-image-chooser a:hover,
@@ -1427,17 +1427,17 @@ html body.tc-body.tc-single-tiddler-window {
 
 .tc-image-chooser a svg,
 .tc-image-chooser a img {
-    display: inline-block;
-    width: auto;
-    height: auto;
-    max-width: 3.5em;
-    max-height: 3.5em;
-    position: absolute;
-    top: 0;
-    bottom: 0;
-    left: 0;
-    right: 0;
-    margin: auto;
+	display: inline-block;
+	width: auto;
+	height: auto;
+	max-width: 3.5em;
+	max-height: 3.5em;
+	position: absolute;
+	top: 0;
+	bottom: 0;
+	left: 0;
+	right: 0;
+	margin: auto;
 }
 
 /*
@@ -2076,7 +2076,7 @@ body.tc-dirty span.tc-dirty-indicator, body.tc-dirty span.tc-dirty-indicator svg
 }
 
 .tc-thumbnail-image {
-    text-align: center;
+	text-align: center;
 	overflow: hidden;
 	border-radius: 3px;
 }
@@ -2085,9 +2085,9 @@ body.tc-dirty span.tc-dirty-indicator, body.tc-dirty span.tc-dirty-indicator svg
 .tc-thumbnail-image img {
 	filter: alpha(opacity=1);
 	opacity: 1;
-    min-width: 100%;
-    min-height: 100%;
-    max-width: 100%;
+	min-width: 100%;
+	min-height: 100%;
+	max-width: 100%;
 }
 
 .tc-thumbnail-wrapper:hover .tc-thumbnail-image svg,