diff --git a/lv_misc/lv_color.h b/lv_misc/lv_color.h
index c224f8e8c..4e661f5b6 100644
--- a/lv_misc/lv_color.h
+++ b/lv_misc/lv_color.h
@@ -57,8 +57,8 @@ extern "C" {
 #define LV_OPA_100       255
 #define LV_OPA_COVER     255
 
-#define LV_OPA_MIN		0		/*Opacities below this will be transparent*/
-#define LV_OPA_MAX		255		/*Opacities above this will fully cover*/
+#define LV_OPA_MIN		4		/*Opacities below this will be transparent*/
+#define LV_OPA_MAX		251		/*Opacities above this will fully cover*/
 
 #if LV_COLOR_DEPTH == 1
 #define LV_COLOR_SIZE			8
diff --git a/lv_objx/lv_btn.c b/lv_objx/lv_btn.c
index 2e400937c..993cb0b15 100644
--- a/lv_objx/lv_btn.c
+++ b/lv_objx/lv_btn.c
@@ -130,6 +130,8 @@ lv_obj_t * lv_btn_create(lv_obj_t * par, const lv_obj_t * copy)
         lv_btn_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
         ext->state = copy_ext->state;
         ext->toggle = copy_ext->toggle;
+        ext->ink_fill_time = copy_ext->ink_fill_time;
+        ext->ink_wait_time = copy_ext->ink_wait_time;
         memcpy(ext->actions, copy_ext->actions, sizeof(ext->actions));
         memcpy(ext->styles, copy_ext->styles, sizeof(ext->styles));