Fix an issue on Avatar when font scale is not 1f.

libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/components/avatar/Avatar.kt

@@ -33,11 +33,11 @@ import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
 import coil.compose.AsyncImage
 import io.element.android.libraries.designsystem.preview.ElementThemedPreview
 import io.element.android.libraries.designsystem.preview.PreviewGroup
 import io.element.android.libraries.designsystem.preview.debugPlaceholderAvatar
+import io.element.android.libraries.designsystem.text.textDp
 import io.element.android.libraries.designsystem.theme.components.Text
 import io.element.android.libraries.theme.AvatarGradientEnd
 import io.element.android.libraries.theme.AvatarGradientStart
@@ -103,7 +103,7 @@ private fun InitialsAvatar(
         Text(
             modifier = Modifier.align(Alignment.Center),
             text = avatarData.initial,
-            fontSize = (avatarData.size.dp / 2).value.sp,
+            fontSize = ((avatarData.size.dp / 2).value).toInt().textDp,
             color = Color.White,
         )
     }

libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/text/TextDp.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.libraries.designsystem.text
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.unit.Density
+import androidx.compose.ui.unit.TextUnit
+import androidx.compose.ui.unit.dp
+
+private fun Int.textDp(density: Density): TextUnit = with(density) {
+    this@textDp.dp.toSp()
+}
+
+val Int.textDp: TextUnit
+    @Composable get() = this.textDp(density = LocalDensity.current)