diff --git a/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt b/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
index b67cbe5f..72d1cc20 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
@@ -815,9 +815,9 @@ private val showCancelButton = mutableStateOf(false)
 private val showAnswerRejectButtons = mutableStateOf(false)
 private val showHangupButton = mutableStateOf(false)
 private val showOnHoldNotice = mutableStateOf(false)
-private var holdIcon = mutableIntStateOf(R.drawable.call_hold)
+private var callOnHold = mutableStateOf(false)
 private val transferButtonEnabled = mutableStateOf(false)
-private val transferIcon = mutableIntStateOf(R.drawable.call_transfer)
+private val callTransfer = mutableStateOf(false)
 private var dtmfText = mutableStateOf("")
 private val dtmfEnabled = mutableStateOf(false)
 private val focusDtmf = mutableStateOf(false)
@@ -1414,7 +1414,7 @@ private fun CallRow(ctx: Context, viewModel: ViewModel) {
                             )
                             call.resume()
                             call.onhold = false
-                            holdIcon.intValue = R.drawable.call_hold
+                            callOnHold.value = false
                         } else {
                             Log.d(
                                 TAG,
@@ -1422,15 +1422,18 @@ private fun CallRow(ctx: Context, viewModel: ViewModel) {
                             )
                             call.hold()
                             call.onhold = true
-                            holdIcon.intValue = R.drawable.resume
+                            callOnHold.value = true
                         }
                     }
                 },
             ) {
                 Icon(
-                    imageVector = ImageVector.vectorResource(id = holdIcon.intValue),
+                    imageVector = ImageVector.vectorResource(R.drawable.call_hold),
                     modifier = Modifier.size(48.dp),
-                    tint = Color.Unspecified,
+                    tint = if (callOnHold.value)
+                        MaterialTheme.colorScheme.error
+                    else
+                        MaterialTheme.colorScheme.secondary,
                     contentDescription = null,
                 )
             }
@@ -1455,9 +1458,12 @@ private fun CallRow(ctx: Context, viewModel: ViewModel) {
                 },
             ) {
                 Icon(
-                    imageVector = ImageVector.vectorResource(transferIcon.intValue),
+                    imageVector = ImageVector.vectorResource(R.drawable.call_transfer),
                     modifier = Modifier.size(48.dp),
-                    tint = Color.Unspecified,
+                    tint = if (callTransfer.value)
+                        MaterialTheme.colorScheme.error
+                    else
+                        MaterialTheme.colorScheme.secondary,
                     contentDescription = null,
                 )
             }
@@ -2037,7 +2043,7 @@ private fun showCall(ctx: Context, viewModel: ViewModel, ua: UserAgent?, showCal
         showCallTimer.value = false
         securityIcon.intValue = -1
         showHangupButton.value = false
-        transferIcon.intValue = R.drawable.call_transfer
+        callTransfer.value = false
         dtmfText.value = ""
         dtmfEnabled.value = false
         focusDtmf.value = false
@@ -2117,10 +2123,7 @@ private fun showCall(ctx: Context, viewModel: ViewModel, ua: UserAgent?, showCal
                     }
                     transferButtonEnabled.value = true
                 }
-                transferIcon.intValue = if (call.onHoldCall == null)
-                    R.drawable.call_transfer
-                else
-                    R.drawable.call_transfer_execute
+                callTransfer.value = call.onHoldCall != null
                 callDuration = call.duration()
                 showCallTimer.value = true
                 if (ua.account.mediaEnc == "")
@@ -2131,10 +2134,7 @@ private fun showCall(ctx: Context, viewModel: ViewModel, ua: UserAgent?, showCal
                 showCancelButton.value = false
                 showHangupButton.value = true
                 showAnswerRejectButtons.value = false
-                if (call.onhold)
-                    holdIcon.intValue = R.drawable.resume
-                else
-                    holdIcon.intValue = R.drawable.call_hold
+                callOnHold.value = call.onhold
                 Handler(Looper.getMainLooper()).postDelayed({
                     showOnHoldNotice.value = call.held
                 }, 100)
diff --git a/app/src/main/res/drawable/call_hold.xml b/app/src/main/res/drawable/call_hold.xml
index 3d5e045d..d4de0406 100644
--- a/app/src/main/res/drawable/call_hold.xml
+++ b/app/src/main/res/drawable/call_hold.xml
@@ -4,6 +4,6 @@
     android:viewportWidth="960"
     android:viewportHeight="960" >
   <path
-      android:fillColor="@color/colorSecondary"
+      android:fillColor="#FF000000"
       android:pathData="M370,640L430,640L430,320L370,320L370,640ZM530,640L590,640L590,320L530,320L530,640ZM480,880Q398,880 325,848.5Q252,817 197.5,762.5Q143,708 111.5,635Q80,562 80,480Q80,397 111.5,324Q143,251 197.5,197Q252,143 325,111.5Q398,80 480,80Q563,80 636,111.5Q709,143 763,197Q817,251 848.5,324Q880,397 880,480Q880,562 848.5,635Q817,708 763,762.5Q709,817 636,848.5Q563,880 480,880ZM480,820Q622,820 721,720.5Q820,621 820,480Q820,338 721,239Q622,140 480,140Q339,140 239.5,239Q140,338 140,480Q140,621 239.5,720.5Q339,820 480,820ZM480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Z"/>
 </vector>
diff --git a/app/src/main/res/drawable/call_transfer.xml b/app/src/main/res/drawable/call_transfer.xml
index df3d8eee..1d0eb513 100644
--- a/app/src/main/res/drawable/call_transfer.xml
+++ b/app/src/main/res/drawable/call_transfer.xml
@@ -4,6 +4,6 @@
     android:viewportWidth="960"
     android:viewportHeight="960" >
   <path
-      android:fillColor="@color/colorSecondary"
+      android:fillColor="#FF000000"
       android:pathData="M480,626L626,480L480,334L438,376L512,450L330,450L330,510L512,510L438,584L480,626ZM480,880Q398,880 325,848.5Q252,817 197.5,762.5Q143,708 111.5,635Q80,562 80,480Q80,397 111.5,324Q143,251 197.5,197Q252,143 325,111.5Q398,80 480,80Q563,80 636,111.5Q709,143 763,197Q817,251 848.5,324Q880,397 880,480Q880,562 848.5,635Q817,708 763,762.5Q709,817 636,848.5Q563,880 480,880ZM480,820Q622,820 721,720.5Q820,621 820,480Q820,338 721,239Q622,140 480,140Q339,140 239.5,239Q140,338 140,480Q140,621 239.5,720.5Q339,820 480,820ZM480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Z"/>
 </vector>
diff --git a/app/src/main/res/drawable/call_transfer_execute.xml b/app/src/main/res/drawable/call_transfer_execute.xml
deleted file mode 100644
index 6c91027a..00000000
--- a/app/src/main/res/drawable/call_transfer_execute.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="48dp"
-    android:height="48dp"
-    android:viewportWidth="960"
-    android:viewportHeight="960" >
-  <path
-      android:fillColor="@color/colorAccent"
-      android:pathData="M480,626L626,480L480,334L438,376L512,450L330,450L330,510L512,510L438,584L480,626ZM480,880Q398,880 325,848.5Q252,817 197.5,762.5Q143,708 111.5,635Q80,562 80,480Q80,397 111.5,324Q143,251 197.5,197Q252,143 325,111.5Q398,80 480,80Q563,80 636,111.5Q709,143 763,197Q817,251 848.5,324Q880,397 880,480Q880,562 848.5,635Q817,708 763,762.5Q709,817 636,848.5Q563,880 480,880ZM480,820Q622,820 721,720.5Q820,621 820,480Q820,338 721,239Q622,140 480,140Q339,140 239.5,239Q140,338 140,480Q140,621 239.5,720.5Q339,820 480,820ZM480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Z"/>
-</vector>
diff --git a/app/src/main/res/drawable/resume.xml b/app/src/main/res/drawable/resume.xml
deleted file mode 100644
index 24dcacca..00000000
--- a/app/src/main/res/drawable/resume.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<vector android:height="48dp" android:viewportHeight="24.0"
-    android:viewportWidth="24.0" android:width="48dp" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="@color/colorAccent" android:pathData="M9,16h2L11,8L9,8v8zM12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8zM13,16h2L15,8h-2v8z"/>
-</vector>