diff --git a/browser/themes/shared/customizableui/customizeMode.inc.css b/browser/themes/shared/customizableui/customizeMode.inc.css
index 89fce0cb6bbf..dd3ed010be3c 100644
--- a/browser/themes/shared/customizableui/customizeMode.inc.css
+++ b/browser/themes/shared/customizableui/customizeMode.inc.css
@@ -219,7 +219,7 @@
.customizationmode-button > .box-inherit > .button-menu-dropmarker {
margin-inline-end: 0;
padding-inline-end: 0;
- list-style-image: url(chrome://browser/skin/arrow-dropdown-16.svg);
+ list-style-image: url(chrome://browser/skin/arrow-dropdown.svg);
}
.customizationmode-button:-moz-any(:focus,:active,:hover):not([disabled]),
diff --git a/browser/themes/shared/icons/addons.svg b/browser/themes/shared/icons/addons.svg
index d2137b53075e..561044879a87 100755
--- a/browser/themes/shared/icons/addons.svg
+++ b/browser/themes/shared/icons/addons.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/arrow-dropdown-12.svg b/browser/themes/shared/icons/arrow-dropdown-12.svg
deleted file mode 100644
index e6da521ef318..000000000000
--- a/browser/themes/shared/icons/arrow-dropdown-12.svg
+++ /dev/null
@@ -1,6 +0,0 @@
-
-
diff --git a/browser/themes/shared/icons/arrow-dropdown-16.svg b/browser/themes/shared/icons/arrow-dropdown-16.svg
deleted file mode 100644
index 56238c56b783..000000000000
--- a/browser/themes/shared/icons/arrow-dropdown-16.svg
+++ /dev/null
@@ -1,6 +0,0 @@
-
-
diff --git a/browser/themes/shared/icons/arrow-dropdown.svg b/browser/themes/shared/icons/arrow-dropdown.svg
new file mode 100644
index 000000000000..f441ca77737c
--- /dev/null
+++ b/browser/themes/shared/icons/arrow-dropdown.svg
@@ -0,0 +1,6 @@
+
+
diff --git a/browser/themes/shared/icons/back.svg b/browser/themes/shared/icons/back.svg
index 1bb9688230d5..c4950af8acba 100644
--- a/browser/themes/shared/icons/back.svg
+++ b/browser/themes/shared/icons/back.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/bookmark-hollow.svg b/browser/themes/shared/icons/bookmark-hollow.svg
index c05d31b2c425..49c8cdfc9d35 100644
--- a/browser/themes/shared/icons/bookmark-hollow.svg
+++ b/browser/themes/shared/icons/bookmark-hollow.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/bookmark.svg b/browser/themes/shared/icons/bookmark.svg
index da899c8fa823..2d21bbccfb10 100644
--- a/browser/themes/shared/icons/bookmark.svg
+++ b/browser/themes/shared/icons/bookmark.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/chevron.svg b/browser/themes/shared/icons/chevron.svg
index d98e72d56681..a1b44e5e86a1 100644
--- a/browser/themes/shared/icons/chevron.svg
+++ b/browser/themes/shared/icons/chevron.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/devTools-panel.svg b/browser/themes/shared/icons/devTools-panel.svg
new file mode 100644
index 000000000000..f44f02de9d33
--- /dev/null
+++ b/browser/themes/shared/icons/devTools-panel.svg
@@ -0,0 +1,6 @@
+
+
diff --git a/browser/themes/shared/icons/developer.svg b/browser/themes/shared/icons/developer.svg
index 0604cd2ef35d..ef8f9fa2a3ba 100755
--- a/browser/themes/shared/icons/developer.svg
+++ b/browser/themes/shared/icons/developer.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/device-desktop.svg b/browser/themes/shared/icons/device-desktop.svg
index c6e6ed79a6e1..b9296fea51db 100755
--- a/browser/themes/shared/icons/device-desktop.svg
+++ b/browser/themes/shared/icons/device-desktop.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/device-mobile.svg b/browser/themes/shared/icons/device-mobile.svg
index 3647732163d5..998b6f9474c2 100755
--- a/browser/themes/shared/icons/device-mobile.svg
+++ b/browser/themes/shared/icons/device-mobile.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/download.svg b/browser/themes/shared/icons/download.svg
index 3f3ca9afc778..e405d3732d62 100755
--- a/browser/themes/shared/icons/download.svg
+++ b/browser/themes/shared/icons/download.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/edit-copy.svg b/browser/themes/shared/icons/edit-copy.svg
index 14550159dfc1..440093e93985 100755
--- a/browser/themes/shared/icons/edit-copy.svg
+++ b/browser/themes/shared/icons/edit-copy.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/edit-cut.svg b/browser/themes/shared/icons/edit-cut.svg
index ba012649022e..68d21052c952 100755
--- a/browser/themes/shared/icons/edit-cut.svg
+++ b/browser/themes/shared/icons/edit-cut.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/edit-paste.svg b/browser/themes/shared/icons/edit-paste.svg
index a62bdba96bc2..96c14d8eab79 100755
--- a/browser/themes/shared/icons/edit-paste.svg
+++ b/browser/themes/shared/icons/edit-paste.svg
@@ -2,5 +2,5 @@
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/browser/themes/shared/icons/email-link.svg b/browser/themes/shared/icons/email-link.svg
index d6d6408471c5..780685042615 100644
--- a/browser/themes/shared/icons/email-link.svg
+++ b/browser/themes/shared/icons/email-link.svg
@@ -1,7 +1,7 @@
-