diff --git a/public/css/modes/dark.less b/public/css/modes/dark.less
new file mode 100644
index 000000000..9be5fef38
--- /dev/null
+++ b/public/css/modes/dark.less
@@ -0,0 +1,5 @@
+/* Icinga Web 2 | (c) 2021 Icinga GmbH | GPLv2+ */
+
+@enable-color-preference: 999999px;
+@prefer-light-color-scheme: 999999px;
+@prefer-dark-color-scheme: 0px;
diff --git a/public/css/modes/light.less b/public/css/modes/light.less
new file mode 100644
index 000000000..d35545564
--- /dev/null
+++ b/public/css/modes/light.less
@@ -0,0 +1,5 @@
+/* Icinga Web 2 | (c) 2021 Icinga GmbH | GPLv2+ */
+
+@enable-color-preference: 999999px;
+@prefer-light-color-scheme: 0px;
+@prefer-dark-color-scheme: 999999px;
diff --git a/public/css/modes/none.less b/public/css/modes/none.less
new file mode 100644
index 000000000..790f01f63
--- /dev/null
+++ b/public/css/modes/none.less
@@ -0,0 +1,5 @@
+/* Icinga Web 2 | (c) 2021 Icinga GmbH | GPLv2+ */
+
+@enable-color-preference: 999999px;
+@prefer-light-color-scheme: 999999px;
+@prefer-dark-color-scheme: 999999px;
diff --git a/public/css/modes/system.less b/public/css/modes/system.less
new file mode 100644
index 000000000..b3b57b7b8
--- /dev/null
+++ b/public/css/modes/system.less
@@ -0,0 +1,5 @@
+/* Icinga Web 2 | (c) 2021 Icinga GmbH | GPLv2+ */
+
+@enable-color-preference: 0px;
+@prefer-light-color-scheme: 999999px;
+@prefer-dark-color-scheme: 999999px;