diff --git a/app/src/main/java/com/nextcloud/talk/adapters/ParticipantDisplayItem.kt b/app/src/main/java/com/nextcloud/talk/adapters/ParticipantDisplayItem.kt
index 2af4ffde3..9b0fa75e6 100644
--- a/app/src/main/java/com/nextcloud/talk/adapters/ParticipantDisplayItem.kt
+++ b/app/src/main/java/com/nextcloud/talk/adapters/ParticipantDisplayItem.kt
@@ -30,6 +30,7 @@ import org.webrtc.MediaStream
 import org.webrtc.PeerConnection.IceConnectionState
 import org.webrtc.SurfaceViewRenderer
 
+@Suppress("LongParameterList")
 class ParticipantDisplayItem(
     private val context: Context,
     private val baseUrl: String,
@@ -79,6 +80,7 @@ class ParticipantDisplayItem(
         }
 
         override fun onReaction(reaction: String) {
+            // unused
         }
     }
 
@@ -88,6 +90,7 @@ class ParticipantDisplayItem(
         updateFromModel()
     }
 
+    @Suppress("Detekt.TooGenericExceptionCaught")
     fun destroy() {
         callParticipantModel.removeObserver(callParticipantModelObserver)
 
diff --git a/app/src/main/java/com/nextcloud/talk/call/components/ParticipantGrid.kt b/app/src/main/java/com/nextcloud/talk/call/components/ParticipantGrid.kt
index 1833c448a..b9c4e0ee6 100644
--- a/app/src/main/java/com/nextcloud/talk/call/components/ParticipantGrid.kt
+++ b/app/src/main/java/com/nextcloud/talk/call/components/ParticipantGrid.kt
@@ -27,6 +27,7 @@ import com.nextcloud.talk.call.ParticipantUiState
 import org.webrtc.EglBase
 import kotlin.math.ceil
 
+@Suppress("MagicNumber", "TooManyFunctions")
 @Composable
 fun ParticipantGrid(
     modifier: Modifier = Modifier,
@@ -101,6 +102,7 @@ fun ParticipantGrid(
     }
 }
 
+@Suppress("MagicNumber")
 @Preview
 @Composable
 fun ParticipantGridPreview() {
@@ -111,6 +113,7 @@ fun ParticipantGridPreview() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview
 @Composable
 fun TwoParticipants() {
@@ -121,6 +124,7 @@ fun TwoParticipants() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview
 @Composable
 fun ThreeParticipants() {
@@ -131,6 +135,7 @@ fun ThreeParticipants() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview
 @Composable
 fun FourParticipants() {
@@ -141,6 +146,7 @@ fun FourParticipants() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview
 @Composable
 fun FiveParticipants() {
@@ -151,6 +157,7 @@ fun FiveParticipants() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview
 @Composable
 fun SevenParticipants() {
@@ -161,6 +168,7 @@ fun SevenParticipants() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview
 @Composable
 fun FiftyParticipants() {
@@ -171,6 +179,7 @@ fun FiftyParticipants() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview(
     showBackground = false,
     heightDp = 360,
@@ -185,6 +194,7 @@ fun OneParticipantLandscape() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview(
     showBackground = false,
     heightDp = 360,
@@ -199,6 +209,7 @@ fun TwoParticipantsLandscape() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview(
     showBackground = false,
     heightDp = 360,
@@ -213,6 +224,7 @@ fun ThreeParticipantsLandscape() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview(
     showBackground = false,
     heightDp = 360,
@@ -227,6 +239,7 @@ fun FourParticipantsLandscape() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview(
     showBackground = false,
     heightDp = 360,
@@ -241,6 +254,7 @@ fun SevenParticipantsLandscape() {
     ) {}
 }
 
+@Suppress("MagicNumber")
 @Preview(
     showBackground = false,
     heightDp = 360,
diff --git a/app/src/main/java/com/nextcloud/talk/call/components/ParticipantTile.kt b/app/src/main/java/com/nextcloud/talk/call/components/ParticipantTile.kt
index e17403c0c..dc6828adf 100644
--- a/app/src/main/java/com/nextcloud/talk/call/components/ParticipantTile.kt
+++ b/app/src/main/java/com/nextcloud/talk/call/components/ParticipantTile.kt
@@ -33,6 +33,9 @@ import com.nextcloud.talk.call.ParticipantUiState
 import com.nextcloud.talk.utils.ColorGenerator
 import org.webrtc.EglBase
 
+const val NICK_OFFSET = 4f
+const val NICK_BLUR_RADIUS = 4f
+
 @Composable
 fun ParticipantTile(
     participant: ParticipantUiState,
@@ -89,8 +92,8 @@ fun ParticipantTile(
             style = MaterialTheme.typography.bodyMedium.copy(
                 shadow = Shadow(
                     color = Color.Black,
-                    offset = Offset(4f, 4f),
-                    blurRadius = 4f
+                    offset = Offset(NICK_OFFSET, NICK_OFFSET),
+                    blurRadius = NICK_BLUR_RADIUS
                 )
             )
         )
diff --git a/app/src/main/java/com/nextcloud/talk/utils/ColorGenerator.kt b/app/src/main/java/com/nextcloud/talk/utils/ColorGenerator.kt
index c8fa1e58e..468f72374 100644
--- a/app/src/main/java/com/nextcloud/talk/utils/ColorGenerator.kt
+++ b/app/src/main/java/com/nextcloud/talk/utils/ColorGenerator.kt
@@ -15,6 +15,7 @@ import kotlin.math.abs
 // See https://github.com/nextcloud/nextcloud-vue/blob/56b79afae93f4701a0cb933bfeb7b4a2fbd590fb/src/functions/usernameToColor/usernameToColor.js
 // and https://github.com/nextcloud/nextcloud-vue/blob/56b79afae93f4701a0cb933bfeb7b4a2fbd590fb/src/utils/GenColors.js
 
+@Suppress("MagicNumber")
 class ColorGenerator private constructor() {
 
     private val steps = 6