diff --git a/graphics/player/sg_blink.png b/graphics/player/sg_blink.png new file mode 100644 index 0000000..61ef0f8 Binary files /dev/null and b/graphics/player/sg_blink.png differ diff --git a/graphics/player/sg_stim.png b/graphics/player/sg_stim.png index e5c4074..5a8c19d 100644 Binary files a/graphics/player/sg_stim.png and b/graphics/player/sg_stim.png differ