diff --git a/app/src/main/kotlin/app/aaps/MainApp.kt b/app/src/main/kotlin/app/aaps/MainApp.kt
index fb00915db60..b9ce7d309f3 100644
--- a/app/src/main/kotlin/app/aaps/MainApp.kt
+++ b/app/src/main/kotlin/app/aaps/MainApp.kt
@@ -197,6 +197,7 @@ class MainApp : DaggerApplication() {
         if (preferences.get(UnitDoubleKey.OverviewHypoTarget) == 0.0) preferences.remove(UnitDoubleKey.OverviewHypoTarget)
         if (preferences.get(UnitDoubleKey.OverviewLowMark) == 0.0) preferences.remove(UnitDoubleKey.OverviewLowMark)
         if (preferences.get(UnitDoubleKey.OverviewHighMark) == 0.0) preferences.remove(UnitDoubleKey.OverviewHighMark)
+        if (preferences.get(UnitDoubleKey.OverviewVeryHighMark) == 0.0) preferences.remove(UnitDoubleKey.OverviewVeryHighMark)
         if (preferences.getIfExists(BooleanKey.GeneralSimpleMode) == null)
             preferences.put(BooleanKey.GeneralSimpleMode, !preferences.get(BooleanKey.GeneralSetupWizardProcessed))
         // Migrate from OpenAPSSMBDynamicISFPlugin
diff --git a/core/graph/src/main/kotlin/app/aaps/core/graph/data/InMemoryGlucoseValueDataPoint.kt b/core/graph/src/main/kotlin/app/aaps/core/graph/data/InMemoryGlucoseValueDataPoint.kt
index a7780fa5919..5b0641659dd 100644
--- a/core/graph/src/main/kotlin/app/aaps/core/graph/data/InMemoryGlucoseValueDataPoint.kt
+++ b/core/graph/src/main/kotlin/app/aaps/core/graph/data/InMemoryGlucoseValueDataPoint.kt
@@ -36,8 +36,10 @@ class InMemoryGlucoseValueDataPoint(
         val units = profileFunction.getUnits()
         val lowLine = preferences.get(UnitDoubleKey.OverviewLowMark)
         val highLine = preferences.get(UnitDoubleKey.OverviewHighMark)
+        val veryHighLine = preferences.get(UnitDoubleKey.OverviewVeryHighMark)
         val color = when {
             valueToUnits(units) < lowLine  -> rh.gac(context, app.aaps.core.ui.R.attr.bgLow)
+            valueToUnits(units) > veryHighLine -> rh.gac(context, app.aaps.core.ui.R.attr.veryHighColor)
             valueToUnits(units) > highLine -> rh.gac(context, app.aaps.core.ui.R.attr.highColor)
             else                           -> rh.gac(context, app.aaps.core.ui.R.attr.bgInRange)
         }
diff --git a/core/interfaces/src/main/kotlin/app/aaps/core/interfaces/overview/LastBgData.kt b/core/interfaces/src/main/kotlin/app/aaps/core/interfaces/overview/LastBgData.kt
index 3440f7ec21b..a8a78c61d45 100644
--- a/core/interfaces/src/main/kotlin/app/aaps/core/interfaces/overview/LastBgData.kt
+++ b/core/interfaces/src/main/kotlin/app/aaps/core/interfaces/overview/LastBgData.kt
@@ -34,6 +34,13 @@ interface LastBgData {
      */
     fun isHigh(): Boolean
 
+    /**
+     * Is last value above display high very target?
+     *
+     * @return true if above
+     */
+    fun isVeryHigh(): Boolean
+
     /**
      * Evaluate color based on low - in - high
      *
diff --git a/core/keys/src/main/kotlin/app/aaps/core/keys/UnitDoubleKey.kt b/core/keys/src/main/kotlin/app/aaps/core/keys/UnitDoubleKey.kt
index 1ce6dbcb856..8417bfe5f69 100644
--- a/core/keys/src/main/kotlin/app/aaps/core/keys/UnitDoubleKey.kt
+++ b/core/keys/src/main/kotlin/app/aaps/core/keys/UnitDoubleKey.kt
@@ -19,6 +19,7 @@ enum class UnitDoubleKey(
     OverviewHypoTarget("hypo_target", 160.0, 108, 180, defaultedBySM = true),
     OverviewLowMark("low_mark", 72.0, 25, 160, showInNsClientMode = false, hideParentScreenIfHidden = true),
     OverviewHighMark("high_mark", 180.0, 90, 250, showInNsClientMode = false),
+    OverviewVeryHighMark("very_high_mark", 400.0, 200, 400, showInNsClientMode = false),
     ApsLgsThreshold("lgsThreshold", 65.0, 60, 100, defaultedBySM = true, dependency = BooleanKey.ApsUseDynamicSensitivity),
     ApsAutoIsfSmbDeliveryRatioBgRange("openapsama_smb_delivery_ratio_bg_range", 0.0, 0, 100, defaultedBySM = true)
 }
\ No newline at end of file
diff --git a/core/ui/src/main/res/values-night/styles.xml b/core/ui/src/main/res/values-night/styles.xml
index 5d80a20fcd4..1437aa9990f 100644
--- a/core/ui/src/main/res/values-night/styles.xml
+++ b/core/ui/src/main/res/values-night/styles.xml
@@ -113,6 +113,7 @@
         <!---BG color-->
         <item name="bgLow">@color/low</item>
         <item name="highColor">@color/high</item>
+        <item name="veryHighColor">@color/low</item>
         <item name="bgInRange">@color/inRange</item>
         <!---Profile Helper -->
         <item name="helperProfileColor">@color/helperProfile</item>
diff --git a/core/ui/src/main/res/values/attrs.xml b/core/ui/src/main/res/values/attrs.xml
index b46603151d9..ecc009e4401 100644
--- a/core/ui/src/main/res/values/attrs.xml
+++ b/core/ui/src/main/res/values/attrs.xml
@@ -89,6 +89,7 @@
     <!---BG color-->
     <attr name="bgLow" format="reference|color" />
     <attr name="highColor" format="reference|color" />
+    <attr name="veryHighColor" format="reference|color" />
     <attr name="bgInRange" format="reference|color" />
     <!---Profile Helper -->
     <attr name="helperProfileColor" format="reference|color" />
diff --git a/core/ui/src/main/res/values/colors.xml b/core/ui/src/main/res/values/colors.xml
index df4abdd40bf..45d700e310d 100644
--- a/core/ui/src/main/res/values/colors.xml
+++ b/core/ui/src/main/res/values/colors.xml
@@ -360,6 +360,7 @@
     <color name="widget_inrange">#00FF00</color>
     <color name="widget_low">#FF0000</color>
     <color name="widget_high">#FFFF00</color>
+    <color name="widget_very_high">#FF0000</color>
     <color name="widget_ribbonWarning">#f4d700</color>
     <color name="widget_ribbonTextDefault">#FFFFFF</color>
     <color name="widget_ribbonCritical">#ff0400</color>
diff --git a/core/ui/src/main/res/values/styles.xml b/core/ui/src/main/res/values/styles.xml
index dd8e587a8d8..4a0be309ec7 100644
--- a/core/ui/src/main/res/values/styles.xml
+++ b/core/ui/src/main/res/values/styles.xml
@@ -116,6 +116,7 @@
         <!---BG color-->
         <item name="bgLow">@color/low</item>
         <item name="highColor">@color/high</item>
+        <item name="veryHighColor">@color/low</item>
         <item name="bgInRange">@color/tempTargetConfirmation</item>
         <!---Profile Helper -->
         <item name="helperProfileColor">@color/helperProfile</item>
diff --git a/implementation/src/main/kotlin/app/aaps/implementation/overview/LastBgDataImpl.kt b/implementation/src/main/kotlin/app/aaps/implementation/overview/LastBgDataImpl.kt
index 04db6298acd..5ca8202cb48 100644
--- a/implementation/src/main/kotlin/app/aaps/implementation/overview/LastBgDataImpl.kt
+++ b/implementation/src/main/kotlin/app/aaps/implementation/overview/LastBgDataImpl.kt
@@ -41,10 +41,16 @@ class LastBgDataImpl @Inject constructor(
             lastBg.valueToUnits(profileFunction.getUnits()) > preferences.get(UnitDoubleKey.OverviewHighMark)
         } == true
 
+    override fun isVeryHigh(): Boolean =
+        lastBg()?.let { lastBg ->
+            lastBg.valueToUnits(profileFunction.getUnits()) > preferences.get(UnitDoubleKey.OverviewVeryHighMark)
+        } == true
+
     @ColorInt
     override fun lastBgColor(context: Context?): Int =
         when {
             isLow()  -> rh.gac(context, app.aaps.core.ui.R.attr.bgLow)
+            isVeryHigh() -> rh.gac(context, app.aaps.core.ui.R.attr.veryHighColor)
             isHigh() -> rh.gac(context, app.aaps.core.ui.R.attr.highColor)
             else     -> rh.gac(context, app.aaps.core.ui.R.attr.bgInRange)
         }
diff --git a/plugins/configuration/src/main/kotlin/app/aaps/plugins/configuration/setupwizard/SWDefinition.kt b/plugins/configuration/src/main/kotlin/app/aaps/plugins/configuration/setupwizard/SWDefinition.kt
index 6051d7cfdbf..864ce7564c7 100644
--- a/plugins/configuration/src/main/kotlin/app/aaps/plugins/configuration/setupwizard/SWDefinition.kt
+++ b/plugins/configuration/src/main/kotlin/app/aaps/plugins/configuration/setupwizard/SWDefinition.kt
@@ -148,6 +148,14 @@ class SWDefinition @Inject constructor(
                     .label(R.string.high_mark)
                     .comment(R.string.high_mark_comment)
             )
+            .add(SWBreak(injector))
+            .add(
+                SWEditNumberWithUnits(injector, UnitDoubleKey.OverviewVeryHighMark.defaultValue * Constants.MGDL_TO_MMOLL, 5.0, 23.0)
+                    .preference(UnitDoubleKey.OverviewVeryHighMark)
+                    .updateDelay(5)
+                    .label(R.string.very_high_mark)
+                    .comment(R.string.very_high_mark_comment)
+            )
 
     private val screenPermissionWindow
         get() = SWScreen(injector, R.string.permission)
diff --git a/plugins/configuration/src/main/res/values/strings.xml b/plugins/configuration/src/main/res/values/strings.xml
index d5bbf9d7c8a..3277ff475e4 100644
--- a/plugins/configuration/src/main/res/values/strings.xml
+++ b/plugins/configuration/src/main/res/values/strings.xml
@@ -16,8 +16,10 @@
     <string name="display_settings">Display Settings</string>
     <string name="low_mark">LOW mark</string>
     <string name="high_mark">HIGH mark</string>
+    <string name="very_high_mark">VERY HIGH mark</string>
     <string name="low_mark_comment">Lower value of in range area (display only)</string>
     <string name="high_mark_comment">Higher value of in range area (display only)</string>
+    <string name="very_high_mark_comment">Even Higher value of in range area (display only)</string>
     <string name="permission">Permission</string>
     <string name="need_system_window_permission">Application needs system window permission for notifications</string>
     <string name="need_location_permission">Application needs location permission for BT scan and WiFi identification</string>
diff --git a/plugins/main/src/main/kotlin/app/aaps/plugins/main/general/overview/OverviewPlugin.kt b/plugins/main/src/main/kotlin/app/aaps/plugins/main/general/overview/OverviewPlugin.kt
index c92e4bf97f8..a191994baca 100644
--- a/plugins/main/src/main/kotlin/app/aaps/plugins/main/general/overview/OverviewPlugin.kt
+++ b/plugins/main/src/main/kotlin/app/aaps/plugins/main/general/overview/OverviewPlugin.kt
@@ -150,6 +150,7 @@ class OverviewPlugin @Inject constructor(
             .put(UnitDoubleKey.OverviewHypoTarget, preferences)
             .put(UnitDoubleKey.OverviewLowMark, preferences)
             .put(UnitDoubleKey.OverviewHighMark, preferences)
+            .put(UnitDoubleKey.OverviewVeryHighMark, preferences)
             .put(IntKey.OverviewCageWarning, preferences)
             .put(IntKey.OverviewCageCritical, preferences)
             .put(IntKey.OverviewIageWarning, preferences)
@@ -180,6 +181,7 @@ class OverviewPlugin @Inject constructor(
             .store(UnitDoubleKey.OverviewHypoTarget, preferences)
             .store(UnitDoubleKey.OverviewLowMark, preferences)
             .store(UnitDoubleKey.OverviewHighMark, preferences)
+            .store(UnitDoubleKey.OverviewVeryHighMark, preferences)
             .store(IntKey.OverviewCageWarning, preferences)
             .store(IntKey.OverviewCageCritical, preferences)
             .store(IntKey.OverviewIageWarning, preferences)
@@ -260,6 +262,7 @@ class OverviewPlugin @Inject constructor(
                 title = rh.gs(R.string.prefs_range_title)
                 addPreference(AdaptiveUnitPreference(ctx = context, unitKey = UnitDoubleKey.OverviewLowMark, title = R.string.low_mark))
                 addPreference(AdaptiveUnitPreference(ctx = context, unitKey = UnitDoubleKey.OverviewHighMark, title = R.string.high_mark))
+                addPreference(AdaptiveUnitPreference(ctx = context, unitKey = UnitDoubleKey.OverviewVeryHighMark, title = R.string.very_high_mark))
             })
             addPreference(AdaptiveSwitchPreference(ctx = context, booleanKey = BooleanKey.OverviewShortTabTitles, title = R.string.short_tabtitles))
             addPreference(AdaptiveSwitchPreference(ctx = context, booleanKey = BooleanKey.OverviewShowNotesInDialogs, title = R.string.overview_show_notes_field_in_dialogs_title))
diff --git a/plugins/main/src/main/res/values/strings.xml b/plugins/main/src/main/res/values/strings.xml
index d1d78301e54..c1ca3bce097 100644
--- a/plugins/main/src/main/res/values/strings.xml
+++ b/plugins/main/src/main/res/values/strings.xml
@@ -265,6 +265,7 @@
     <string name="prefs_range_summary">High and low mark for the charts in Overview and Smartwatch</string>
     <string name="low_mark">LOW mark</string>
     <string name="high_mark">HIGH mark</string>
+    <string name="very_high_mark">VERY HIGH mark</string>
     <string name="short_tabtitles">Shorten tab titles</string>
     <string name="overview_show_notes_field_in_dialogs_title">Show notes field in treatment dialogs</string>
     <string name="deliverpartofboluswizard">Bolus wizard performs calculation but only this part of calculated insulin is delivered. Useful with SMB algorithm.</string>
diff --git a/ui/src/main/kotlin/app/aaps/ui/widget/Widget.kt b/ui/src/main/kotlin/app/aaps/ui/widget/Widget.kt
index f5ff2192175..b06318fd10e 100644
--- a/ui/src/main/kotlin/app/aaps/ui/widget/Widget.kt
+++ b/ui/src/main/kotlin/app/aaps/ui/widget/Widget.kt
@@ -144,6 +144,7 @@ class Widget : AppWidgetProvider() {
         views.setTextColor(
             R.id.bg, when {
                 lastBgData.isLow()  -> rh.gc(app.aaps.core.ui.R.color.widget_low)
+                lastBgData.isVeryHigh()  -> rh.gc(app.aaps.core.ui.R.color.widget_very_high)
                 lastBgData.isHigh() -> rh.gc(app.aaps.core.ui.R.color.widget_high)
                 else                -> rh.gc(app.aaps.core.ui.R.color.widget_inrange)
             }
@@ -155,6 +156,7 @@ class Widget : AppWidgetProvider() {
         views.setInt(
             R.id.arrow, "setColorFilter", when {
                 lastBgData.isLow()  -> rh.gc(app.aaps.core.ui.R.color.widget_low)
+                lastBgData.isVeryHigh()  -> rh.gc(app.aaps.core.ui.R.color.widget_very_high)
                 lastBgData.isHigh() -> rh.gc(app.aaps.core.ui.R.color.widget_high)
                 else                -> rh.gc(app.aaps.core.ui.R.color.widget_inrange)
             }