diff --git a/media/atree/connect_angle.png b/media/atree/connect_angle.png
index 46c5e81..b1b03fd 100644
Binary files a/media/atree/connect_angle.png and b/media/atree/connect_angle.png differ
diff --git a/media/atree/connect_c.png b/media/atree/connect_c.png
index c274306..cc5022b 100644
Binary files a/media/atree/connect_c.png and b/media/atree/connect_c.png differ
diff --git a/media/atree/connect_line.png b/media/atree/connect_line.png
index 02771e5..41ee507 100644
Binary files a/media/atree/connect_line.png and b/media/atree/connect_line.png differ
diff --git a/media/atree/connect_t.png b/media/atree/connect_t.png
index 14d3c16..8ed976e 100644
Binary files a/media/atree/connect_t.png and b/media/atree/connect_t.png differ