norinorin

diff --git a/index.html.bak b/index.html
index 2befa8f..469037a 100644
--- a/index.html.bak
+++ b/index.html
@@ -57,6 +57,14 @@
                 </label>
                 <label>Min pressure to generate: <br><input type="range" id="min_pressure" min="0" max="1" step="0.01"
                         value="0" /></label>
+                <label>Horizontal area scaling: <br><input type="range" id="scale_horizontal" min="0.3" max="1"
+                        step="0.01" value="1" /><output>100%</output></label>