Added transparency to background filter

Added information about the transparency option of the background filter.
liip · May 16, 2018 · 3c05c6d · 3c05c6d
1 parent 6b5f04c
commit 3c05c6d
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Resources/doc/filters/general.rst b/Resources/doc/filters/general.rst
@@ -61,6 +61,10 @@ Background Options
     values: ``topleft``, ``top``, ``topright``, ``left``, ``center``, ``right``, ``bottomleft``,
     ``bottom``, and ``bottomright``.
 
+:strong:`transparency:` ``integer``
+    Sets the background alpha value. The value should be within a range of 0 - 100.
+
+
 .. _filter-grayscale:
 
 Grayscale