diff --git a/data/themes/AdulteratedOrange.theme b/data/themes/AdulteratedOrange.theme
index dd4ba9f4b..ce6fc5bca 100644
--- a/data/themes/AdulteratedOrange.theme
+++ b/data/themes/AdulteratedOrange.theme
@@ -73,6 +73,7 @@ menu_Head_red=0
 menu_Hint_gradient=4
 menu_Hint_gradient_direction=1
 menu_Separator_gradient_enable=0
+rounded_corners=0
 progressbar_active_blue=0
 progressbar_active_green=70
 progressbar_active_red=95
diff --git a/data/themes/Material_Blue-Grey.theme b/data/themes/Material_Blue-Grey.theme
index f010bd51d..8c788a95f 100644
--- a/data/themes/Material_Blue-Grey.theme
+++ b/data/themes/Material_Blue-Grey.theme
@@ -137,3 +137,5 @@ shadow_red=0
 shadow_green=0
 shadow_blue=0
 shadow_alpha=25
+
+rounded_corners=0
diff --git a/data/themes/Material_Grey_(Dark).theme b/data/themes/Material_Grey_(Dark).theme
index 2d0843de5..8042369c8 100644
--- a/data/themes/Material_Grey_(Dark).theme
+++ b/data/themes/Material_Grey_(Dark).theme
@@ -137,3 +137,5 @@ shadow_red=0
 shadow_green=0
 shadow_blue=0
 shadow_alpha=25
+
+rounded_corners=0
diff --git a/data/themes/Material_Grey_(Dark)_Orange.theme b/data/themes/Material_Grey_(Dark)_Orange.theme
index 00ab436f6..d50562f49 100644
--- a/data/themes/Material_Grey_(Dark)_Orange.theme
+++ b/data/themes/Material_Grey_(Dark)_Orange.theme
@@ -119,3 +119,5 @@ shadow_red=0
 shadow_green=0
 shadow_blue=0
 shadow_alpha=25
+
+rounded_corners=0
diff --git a/data/themes/Material_Grey_(Light).theme b/data/themes/Material_Grey_(Light).theme
index 4324da886..53c0d5094 100644
--- a/data/themes/Material_Grey_(Light).theme
+++ b/data/themes/Material_Grey_(Light).theme
@@ -138,3 +138,5 @@ shadow_red=0
 shadow_green=0
 shadow_blue=0
 shadow_alpha=25
+
+rounded_corners=0
diff --git a/data/themes/Material_Grey_(Medium).theme b/data/themes/Material_Grey_(Medium).theme
index ff23740f2..23474b099 100644
--- a/data/themes/Material_Grey_(Medium).theme
+++ b/data/themes/Material_Grey_(Medium).theme
@@ -137,3 +137,5 @@ shadow_red=0
 shadow_green=0
 shadow_blue=0
 shadow_alpha=25
+
+rounded_corners=0