diff --git a/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/ui/theme/Color.kt b/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/ui/theme/Color.kt
index a37c47950a..6344855019 100644
--- a/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/ui/theme/Color.kt
+++ b/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/ui/theme/Color.kt
@@ -309,25 +309,32 @@ fun generateSchemeDark(
   step: Float = 0.038f,
   mutedChroma: Float = 0.020f,
   colorChroma: Float = 0.063f,
+  patternDepth: Float? = null,
+  patternChroma: Float? = null,
+  bgLOffset: Float = 0f,
   saturationScale: Float = 1f,
   contrastScale: Float = 1f,
   patternIntensity: Float = 1f,
-): FormulaResult = generateDarkFromSlots(hue, bgL, step, mutedChroma, colorChroma, DARK_SLOTS, false, saturationScale, contrastScale, patternIntensity)
+): FormulaResult = generateDarkFromSlots(hue, bgL, step, mutedChroma, colorChroma, DARK_SLOTS, false, patternDepth, patternChroma, bgLOffset, saturationScale, contrastScale, patternIntensity)
 
 fun generateSchemeBlack(
   hue: Float,
   step: Float = 0.04f,
   colorChroma: Float = 0.0522f,
+  patternDepth: Float? = null,
+  patternChroma: Float? = null,
+  bgLOffset: Float = 0f,
   saturationScale: Float = 1f,
   contrastScale: Float = 1f,
   patternIntensity: Float = 1f,
-): FormulaResult = generateDarkFromSlots(hue, 0f, step, 0f, colorChroma, BLACK_SLOTS, true, saturationScale, contrastScale, patternIntensity)
+): FormulaResult = generateDarkFromSlots(hue, 0f, step, 0f, colorChroma, BLACK_SLOTS, true, patternDepth, patternChroma, bgLOffset, saturationScale, contrastScale, patternIntensity)
 
 private fun generateDarkFromSlots(
   hue: Float, bgL: Float, step: Float,
   mutedChroma: Float, colorChroma: Float,
   slotDefs: Map<String, DarkSlotDef>,
   patternPinsToP3: Boolean,
+  patternDepth: Float?, patternChroma: Float?, bgLOffset: Float,
   saturationScale: Float, contrastScale: Float, patternIntensity: Float,
 ): FormulaResult {
   val effStep = step * contrastScale
@@ -345,12 +352,20 @@ private fun generateDarkFromSlots(
     var lMult = def.lightnessMult
     var baseC = baselineC[name]!!
     if (name == "pattern") {
-      lMult *= patternIntensity
-      baseC = bgCAnchor + (baseC - bgCAnchor) * patternIntensity
+      // patternDepth slider overrides slot's lightnessMult (and patternIntensity)
+      // directly; same semantic as LIGHT's patternDepth — multiplier on effStep.
+      lMult = patternDepth ?: (lMult * patternIntensity)
+      baseC = patternChroma ?: (bgCAnchor + (baseC - bgCAnchor) * patternIntensity)
     }
-    val L = bgL + lMult * effStep
+    // bgLOffset nudges only the background slot, leaving bubbles/pattern at their
+    // formula-computed L (mirrors LIGHT's bgLOffset behaviour).
+    val L = if (name == "background") (bgL + bgLOffset).coerceIn(0f, 1f)
+            else bgL + lMult * effStep
     val C = when {
       name == "background" -> bgCAnchor
+      // patternChroma slider takes precedence over BLACK's max-pin behavior so
+      // the user can dial it back from the gamut edge.
+      name == "pattern" && patternChroma != null -> patternChroma
       name == "pattern" && patternPinsToP3 -> maxChroma(L, hue)
       else -> bgCAnchor + (baseC - bgCAnchor) * saturationScale
     }.let { min(it, maxChroma(L, hue)) }
diff --git a/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/Appearance.kt b/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/Appearance.kt
index 808d39ce86..79ae765ffd 100644
--- a/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/Appearance.kt
+++ b/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/Appearance.kt
@@ -784,6 +784,8 @@ object AppearanceScope {
           "hue" to bg.H.let { if (isBlack) sm.H else it },
           "bgL" to bg.L, "step" to step,
           "mutedChroma" to mutedC, "colorChroma" to sm.C,
+          "patternDepth" to if (step > 0f) (tint.L - bg.L) / step else 0f,
+          "patternChroma" to tint.C,
         )
       }
     }
@@ -816,10 +818,16 @@ object AppearanceScope {
       )
       DefaultTheme.BLACK -> generateSchemeBlack(
         hue.floatValue, step.floatValue, colorChroma.floatValue,
+        patternDepth = patternDepth.floatValue,
+        patternChroma = patternChromaVal.floatValue,
+        bgLOffset = bgLOffset.floatValue,
       )
       else -> generateSchemeDark(
         hue.floatValue, bgL.floatValue, step.floatValue,
         mutedChroma.floatValue, colorChroma.floatValue,
+        patternDepth = patternDepth.floatValue,
+        patternChroma = patternChromaVal.floatValue,
+        bgLOffset = bgLOffset.floatValue,
       )
     }
 
@@ -859,15 +867,21 @@ object AppearanceScope {
         }
         DefaultTheme.BLACK -> {
           FormulaSlider("Hue", hue, 0f..360f)
+          FormulaSlider("BG Lightness", bgLOffset, -0.05f..0.05f)
           FormulaSlider("Contrast", step, 0.01f..0.10f)
           FormulaSlider("Accent chroma", colorChroma, 0f..0.20f)
+          FormulaSlider("Pattern depth", patternDepth, 0f..15f)
+          FormulaSlider("Pattern chroma", patternChromaVal, 0f..0.15f)
         }
         else -> {
           FormulaSlider("Hue", hue, 0f..360f)
           FormulaSlider("Lightness", bgL, 0.05f..0.30f)
+          FormulaSlider("BG Lightness", bgLOffset, -0.05f..0.05f)
           FormulaSlider("Contrast", step, 0.01f..0.10f)
           FormulaSlider("Accent chroma", colorChroma, 0f..0.20f)
           FormulaSlider("Secondary chroma", mutedChroma, 0f..0.05f)
+          FormulaSlider("Pattern depth", patternDepth, 0f..10f)
+          FormulaSlider("Pattern chroma", patternChromaVal, 0f..0.15f)
         }
       }
       SectionItemView({