diff --git a/doc/img/bf-param.gif b/doc/img/bf-param.gif
index c5043db291149275449f7f66568a11baebcd81fa..f946c1064c5ccf023891f4f131705746b0dbe442 100644
Binary files a/doc/img/bf-param.gif and b/doc/img/bf-param.gif differ