diff --git a/app/src/main/res/layout/key_overlay_lf4.xml b/app/src/main/res/layout/key_overlay_lf4.xml
new file mode 100644
index 00000000..3dff0b51
--- /dev/null
+++ b/app/src/main/res/layout/key_overlay_lf4.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge xmlns:android="http://schemas.android.com/apk/res/android">
+	<ImageView
+		style="@style/TTheme.Numpad.Key.Overlay.Icon"
+		android:tag="overlay_icon"
+		android:contentDescription="@null" />
+
+	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.HoldIcon.Wrapper">
+		<ImageView
+			style="@style/TTheme.Numpad.Key.LF4.Overlay.HoldIcon"
+			android:tag="overlay_hold_icon"
+			android:contentDescription="@null" />
+	</RelativeLayout>
+</merge>
diff --git a/app/src/main/res/layout/panel_numpad_left.xml b/app/src/main/res/layout/panel_numpad_left.xml
index 2fa3abe7..c658c11b 100644
--- a/app/src/main/res/layout/panel_numpad_left.xml
+++ b/app/src/main/res/layout/panel_numpad_left.xml
@@ -26,7 +26,7 @@
 
 	<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyLF4
-			style="@style/TTheme.Numpad.Key.Large"
+			style="@style/TTheme.Numpad.Key.LF4"
 			android:id="@+id/soft_key_lf4" />
 		<include layout="@layout/key_overlay_icons" />
 	</RelativeLayout>
diff --git a/app/src/main/res/values-night-v31/colors.xml b/app/src/main/res/values-night-v31/colors.xml
index cf24ed62..d9f914a7 100644
--- a/app/src/main/res/values-night-v31/colors.xml
+++ b/app/src/main/res/values-night-v31/colors.xml
@@ -25,10 +25,10 @@
 	<color name="key_num_text">@color/keyboard_text</color>
 	<color name="key_num_alternative_text">@color/material_dynamic_neutral80</color> <!-- 'hold' functions -->
 
-	<color name="key_fn_background">@color/material_dynamic_secondary30</color>
-	<color name="key_fn_ripple">@color/material_dynamic_secondary40</color>
-	<color name="key_fn_text">@color/material_dynamic_secondary90</color>
-	<color name="key_fn_alternative_text">@color/material_dynamic_secondary80</color> <!-- 'hold' functions -->
+	<color name="key_fn_background">@color/material_dynamic_neutral_variant30</color>
+	<color name="key_fn_ripple">@color/material_dynamic_neutral40</color>
+	<color name="key_fn_text">@color/material_dynamic_neutral90</color>
+	<color name="key_fn_alternative_text">@color/material_dynamic_neutral80</color> <!-- 'hold' functions -->
 
 	<color name="key_ok_background">@color/suggestion_selected_background</color>
 	<color name="key_ok_ripple">@color/material_dynamic_primary50</color>
diff --git a/app/src/main/res/values-night-v33/colors.xml b/app/src/main/res/values-night-v33/colors.xml
new file mode 100644
index 00000000..c1da2e46
--- /dev/null
+++ b/app/src/main/res/values-night-v33/colors.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<color name="key_lf4_background">@color/material_dynamic_secondary30</color>
+	<color name="key_lf4_ripple">@color/material_dynamic_secondary40</color>
+	<color name="key_lf4_text">@color/keyboard_text</color>
+	<color name="key_lf4_alternative_text">@color/material_dynamic_secondary80</color> <!-- 'hold' functions -->
+</resources>
diff --git a/app/src/main/res/values-night-v35/colors.xml b/app/src/main/res/values-night-v35/colors.xml
index 7b1cc39b..faa71d43 100644
--- a/app/src/main/res/values-night-v35/colors.xml
+++ b/app/src/main/res/values-night-v35/colors.xml
@@ -1,5 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+	<color name="key_fn_background">@color/material_dynamic_secondary30</color>
+	<color name="key_fn_ripple">@color/material_dynamic_secondary40</color>
+	<color name="key_fn_text">@color/material_dynamic_secondary90</color>
+	<color name="key_fn_alternative_text">@color/material_dynamic_secondary80</color> <!-- 'hold' functions -->
+
+	<color name="key_lf4_background">@color/key_fn_background</color>
+	<color name="key_lf4_ripple">@color/key_fn_ripple</color>
+	<color name="key_lf4_text">@color/key_fn_text</color>
+	<color name="key_lf4_alternative_text">@color/key_fn_alternative_text</color> <!-- 'hold' functions -->
+
 	<color name="key_ok_background">@color/key_fn_background</color>
 	<color name="key_ok_ripple">@color/key_fn_ripple</color>
 	<color name="key_ok_text">@color/key_fn_text</color>
diff --git a/app/src/main/res/values-v33/colors.xml b/app/src/main/res/values-v33/colors.xml
new file mode 100644
index 00000000..48664820
--- /dev/null
+++ b/app/src/main/res/values-v33/colors.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<color name="key_lf4_background">@color/material_dynamic_secondary70</color>
+	<color name="key_lf4_ripple">@color/material_dynamic_secondary60</color>
+	<color name="key_lf4_text">@color/material_dynamic_secondary10</color>
+	<color name="key_lf4_alternative_text">@color/material_dynamic_secondary20</color> <!-- 'hold' functions -->
+</resources>
diff --git a/app/src/main/res/values-v35/colors.xml b/app/src/main/res/values-v35/colors.xml
index 7b1cc39b..611b1107 100644
--- a/app/src/main/res/values-v35/colors.xml
+++ b/app/src/main/res/values-v35/colors.xml
@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+	<color name="key_lf4_background">@color/key_fn_background</color>
+	<color name="key_lf4_ripple">@color/key_fn_ripple</color>
+	<color name="key_lf4_text">@color/key_fn_text</color>
+	<color name="key_lf4_alternative_text">@color/key_fn_alternative_text</color> <!-- 'hold' functions -->
+
 	<color name="key_ok_background">@color/key_fn_background</color>
 	<color name="key_ok_ripple">@color/key_fn_ripple</color>
 	<color name="key_ok_text">@color/key_fn_text</color>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 84683036..7626fd94 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -21,6 +21,11 @@
 	<color name="key_fn_text">@color/keyboard_text</color>
 	<color name="key_fn_alternative_text">#4e4e50</color> <!-- 'hold' functions -->
 
+	<color name="key_lf4_background">@color/key_fn_background</color>
+	<color name="key_lf4_ripple">@color/key_fn_ripple</color>
+	<color name="key_lf4_text">@color/key_fn_text</color>
+	<color name="key_lf4_alternative_text">@color/key_fn_alternative_text</color> <!-- 'hold' functions -->
+
 	<color name="key_ok_background">#1a73e8</color>
 	<color name="key_ok_ripple">#0961d6</color>
 	<color name="key_ok_text">#fff</color>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 1985658c..9e665782 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -264,6 +264,10 @@
 		<item name="android:tint">@color/key_fn_alternative_text</item>
 	</style>
 
+	<style name="TTheme.Numpad.Key.LF4.Overlay.HoldIcon" parent="TTheme.Numpad.Key.Overlay.HoldIcon">
+		<item name="android:tint">@color/key_lf4_alternative_text</item>
+	</style>
+
 	<!-- Overlay: Hold Text -->
 	<style name="TTheme.Numpad.Key.Overlay.Text" parent="TTheme.Numpad.Key.Overlay.Element">
 		<item name="android:textSize">@dimen/numpad_key_overlay_side_text_size</item>
@@ -332,6 +336,11 @@
 		<item name="android:insetBottom">@dimen/numpad_key_spacing</item>
 	</style>
 
+	<style name="TTheme.Numpad.Key.LF4" parent="TTheme.Numpad.Key.Large">
+		<item name="android:textColor">@color/key_lf4_text</item>
+		<item name="backgroundTint">@color/key_lf4_background</item>
+		<item name="rippleColor">@color/key_lf4_ripple</item>
+	</style>
 
 	<style name="TTheme.Numpad.Key.Number" parent="TTheme.Numpad.Key.Large">
 		<item name="android:textColor">@color/key_num_text</item>