diff --git a/src/activities/play_piano/play_piano.svg b/src/activities/play_piano/play_piano.svg
index 039eff9f5..00af7fae3 100644
--- a/src/activities/play_piano/play_piano.svg
+++ b/src/activities/play_piano/play_piano.svg
@@ -1,619 +1,186 @@
diff --git a/src/activities/play_rhythm/play_rhythm.svg b/src/activities/play_rhythm/play_rhythm.svg
index 912e5ac9b..db13f949e 100644
--- a/src/activities/play_rhythm/play_rhythm.svg
+++ b/src/activities/play_rhythm/play_rhythm.svg
@@ -1,561 +1,280 @@
diff --git a/src/activities/play_rhythm/resource/metronome_front.svg b/src/activities/play_rhythm/resource/metronome_front.svg
index 674b68e16..5390bf437 100644
--- a/src/activities/play_rhythm/resource/metronome_front.svg
+++ b/src/activities/play_rhythm/resource/metronome_front.svg
@@ -1,116 +1,116 @@
diff --git a/src/activities/play_rhythm/resource/metronome_stand.svg b/src/activities/play_rhythm/resource/metronome_stand.svg
index 8dae71417..8f0d0c4b2 100644
--- a/src/activities/play_rhythm/resource/metronome_stand.svg
+++ b/src/activities/play_rhythm/resource/metronome_stand.svg
@@ -1,265 +1,265 @@