diff --git a/index.html b/index.html
index 1d95cde..bf9cd56 100644
--- a/index.html
+++ b/index.html
@@ -133,7 +133,7 @@
 					</filter>
 				</defs>
 
-				<g id="frame" style="stroke-width:0.2; stroke:whitesmoke; fill:none;">
+				<g id="frame" style="stroke-width:0.2; stroke:var(--cmed); fill:none;">
 					{{- with .ViewBox }}
 					<rect x="{{ .X }}" y="{{ .Y }}" width="{{ .W }}" height="{{ .H }}"/>
 					{{- end }}