diff --git a/src/apps/playground_chren/layout_scrollicon.py b/src/apps/playground_chren/layout_scrollicon.py
index 3adfa8dc71..da808c36b8 100644
--- a/src/apps/playground_chren/layout_scrollicon.py
+++ b/src/apps/playground_chren/layout_scrollicon.py
@@ -4,16 +4,16 @@ from trezor import loop
 def layout_scrollicon():
 
     def func_top(foreground):
-        ui.display.bar(102, 216, 36, 4, foreground)
+        ui.display.bar(102, 214, 36, 4, foreground, ui.BLACK, 2)
 
     def func_middle(foreground):
-        ui.display.bar(106, 223, 28, 4, foreground)
+        ui.display.bar(106, 222, 28, 4, foreground, ui.BLACK, 2)
 
     def func_bottom(foreground):
-        ui.display.bar(110, 230, 20, 4, foreground)
+        ui.display.bar(110, 230, 20, 4, foreground, ui.BLACK, 2)
 
-    animation_top = ui.animate_pulse(func_top, ui.GREY, ui.BLACK, speed=300000, delay=0)
-    animation_middle = ui.animate_pulse(func_middle, ui.GREY, ui.BLACK, speed=300000, delay=100000)
-    animation_bottom = ui.animate_pulse(func_bottom, ui.GREY, ui.BLACK, speed=300000, delay=200000)
+    animation_top = ui.animate_pulse(func_top, ui.DARK_GREY, ui.LIGHT_GREY, speed=300000, delay=0)
+    animation_middle = ui.animate_pulse(func_middle, ui.DARK_GREY, ui.LIGHT_GREY, speed=300000, delay=100000)
+    animation_bottom = ui.animate_pulse(func_bottom, ui.DARK_GREY, ui.LIGHT_GREY, speed=300000, delay=200000)
 
     yield loop.Wait([animation_top, animation_middle, animation_bottom])
diff --git a/src/main.py b/src/main.py
index 5a0512b9e6..83bf0bdd02 100644
--- a/src/main.py
+++ b/src/main.py
@@ -3,14 +3,12 @@ from trezor import msg
 
 # Load all applications
 from apps import playground
-from apps import playground_chren
 from apps import homescreen
 from apps import management
 from apps import wallet
 
 # Initialize all applications
 playground.boot()
-playground_chren.boot()
 homescreen.boot()
 management.boot()
 wallet.boot()
diff --git a/src/trezor/ui/__init__.py b/src/trezor/ui/__init__.py
index 5e2ab3af32..9ca8146fef 100644
--- a/src/trezor/ui/__init__.py
+++ b/src/trezor/ui/__init__.py
@@ -30,7 +30,9 @@ AMBER       = rgbcolor(0xFF, 0xC1, 0x07)
 ORANGE      = rgbcolor(0xFF, 0x98, 0x00)
 DEEP_ORANGE = rgbcolor(0xFF, 0x57, 0x22)
 BROWN       = rgbcolor(0x79, 0x55, 0x48)
+LIGHT_GREY  = rgbcolor(0xDA, 0xDD, 0xD8)
 GREY        = rgbcolor(0x9E, 0x9E, 0x9E)
+DARK_GREY   = rgbcolor(0x3E, 0x3E, 0x3E)
 BLUE_GRAY   = rgbcolor(0x60, 0x7D, 0x8B)
 BLACK       = rgbcolor(0x00, 0x00, 0x00)
 WHITE       = rgbcolor(0xFF, 0xFF, 0xFF)