diff --git a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.mobile.yml b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.mobile.yml
index 8e5e3c4..3af7156 100644
--- a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.mobile.yml
+++ b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.mobile.yml
@@ -6,6 +6,8 @@ source: breakpoint_test_theme
 sourceType: theme
 weight: 0
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.narrow.yml b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.narrow.yml
index a34b582..1ef8930 100644
--- a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.narrow.yml
+++ b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.narrow.yml
@@ -6,6 +6,8 @@ source: breakpoint_test_theme
 sourceType: theme
 weight: 1
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.tv.yml b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.tv.yml
index d594ff4..e036780 100644
--- a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.tv.yml
+++ b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.tv.yml
@@ -6,6 +6,8 @@ source: breakpoint_test_theme
 sourceType: theme
 weight: 3
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.wide.yml b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.wide.yml
index 34e5f4f..e0f87f8 100644
--- a/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.wide.yml
+++ b/core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.wide.yml
@@ -6,6 +6,8 @@ source: breakpoint_test_theme
 sourceType: theme
 weight: 2
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.narrow.yml b/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.narrow.yml
index 5fae446..54b4c45 100644
--- a/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.narrow.yml
+++ b/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.narrow.yml
@@ -6,6 +6,8 @@ source: toolbar
 sourceType: module
 weight: 0
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.standard.yml b/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.standard.yml
index feda076..162aaa8 100644
--- a/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.standard.yml
+++ b/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.standard.yml
@@ -6,6 +6,8 @@ source: toolbar
 sourceType: module
 weight: 1
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.wide.yml b/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.wide.yml
index bf6243e..b596e3b 100644
--- a/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.wide.yml
+++ b/core/modules/toolbar/config/breakpoint.breakpoint.module.toolbar.wide.yml
@@ -6,6 +6,8 @@ source: toolbar
 sourceType: module
 weight: 2
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.mobile.yml b/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.mobile.yml
index 7add4c0..657d32e 100644
--- a/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.mobile.yml
+++ b/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.mobile.yml
@@ -6,6 +6,8 @@ source: bartik
 sourceType: theme
 weight: 0
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.narrow.yml b/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.narrow.yml
index 0736ab6..f09feb7 100644
--- a/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.narrow.yml
+++ b/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.narrow.yml
@@ -6,6 +6,8 @@ source: bartik
 sourceType: theme
 weight: 1
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en
diff --git a/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.wide.yml b/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.wide.yml
index d43f1ae..6ede3c0 100644
--- a/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.wide.yml
+++ b/core/themes/bartik/config/breakpoint.breakpoint.theme.bartik.wide.yml
@@ -6,6 +6,8 @@ source: bartik
 sourceType: theme
 weight: 2
 multipliers:
-  1x: 1x
+  - 1x
+  - 1.5x
+  - 2x
 status: true
 langcode: en