Repo created

core/ui/account/build.gradle.kts

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+plugins {
+    id(ThunderbirdPlugins.Library.android)
+}
+
+android {
+    namespace = "net.thunderbird.core.ui.account"
+}
+
+dependencies {
+    implementation(projects.core.ui.legacy.designsystem)
+
+    implementation(libs.glide)
+}

core/ui/account/src/main/java/net/thunderbird/core/ui/account/AccountFallbackImageProvider.kt

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+package net.thunderbird.core.ui.account
+
+import android.content.Context
+import android.graphics.drawable.ColorDrawable
+import android.graphics.drawable.Drawable
+import android.graphics.drawable.InsetDrawable
+import android.graphics.drawable.LayerDrawable
+import android.util.TypedValue
+import androidx.core.content.ContextCompat
+import app.k9mail.core.ui.legacy.designsystem.atom.icon.Icons
+
+private const val PADDING_DP = 8f
+
+/**
+ * Provides a [Drawable] for the account using the account's color as background color.
+ */
+class AccountFallbackImageProvider(private val context: Context) {
+    fun getDrawable(color: Int): Drawable {
+        val drawable = ContextCompat.getDrawable(context, Icons.Outlined.Person)
+            ?: error("Error loading drawable")
+
+        val inset = TypedValue.applyDimension(
+            TypedValue.COMPLEX_UNIT_DIP,
+            PADDING_DP,
+            context.resources.displayMetrics,
+        ).toInt()
+
+        return LayerDrawable(
+            arrayOf(
+                ColorDrawable(color),
+                InsetDrawable(drawable, inset),
+            ),
+        )
+    }
+}

core/ui/account/src/main/java/net/thunderbird/core/ui/account/AccountImage.kt

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+package net.thunderbird.core.ui.account
+
+import com.bumptech.glide.load.Key
+import java.security.MessageDigest
+
+data class AccountImage(val email: String, val color: Int) : Key {
+    override fun updateDiskCacheKey(messageDigest: MessageDigest) {
+        messageDigest.update(toString().toByteArray(Key.CHARSET))
+    }
+}