diff --git a/index.html b/index.html
index 86b4dd9..ec86f90 100644
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+++ b/index.html
@@ -554,7 +554,7 @@
               <dt>,</dt><dd>comma signifies there is another parameter coming</dd>
               <dt>split=2[m][v]</dt><dd>Splits the input into two identical outputs and names them [m] and [v]</dd>
               <dt>,</dt><dd>comma signifies there is another parameter coming</dd>
-              <dt>[v]vectorscope=b=0.7:m=color3:g=green[v]</dt><dd>asserts usage of the vectorscope filter and sets a light background opacity (b), sets a background color style (m), and graticule color (g)</dd>
+              <dt>[v]vectorscope=b=0.7:m=color3:g=green[v]</dt><dd>asserts usage of the vectorscope filter and sets a light background opacity (b, alias for bgopacity), sets a background color style (m, alias for mode), and graticule color (g, alias for graticule)</dd>
               <dt>,</dt><dd>comma signifies there is another parameter coming</dd>
               <dt>[m][v]overlay=x=W-w:y=H-h</dt><dd>declares where the vectorscope will overlay on top of the video image as it plays</dd>
               <dt>"</dt><dd>quotation mark to end command</dd>