Add import for new color scheme format

core/base/src/main/java/de/mm20/launcher2/serialization/ColorIntAsHexSerializer.kt

@@ -0,0 +1,22 @@
+package de.mm20.launcher2.serialization
+
+import androidx.core.graphics.toColorInt
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.PrimitiveKind
+import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+
+object ColorIntAsHexSerializer : KSerializer<Int> {
+    override val descriptor: SerialDescriptor =
+        PrimitiveSerialDescriptor(javaClass.canonicalName!!, PrimitiveKind.STRING)
+
+    override fun deserialize(decoder: Decoder): Int {
+        return decoder.decodeString().toColorInt()
+    }
+
+    override fun serialize(encoder: Encoder, value: Int) {
+        encoder.encodeString("#" + value.toUInt().toString(16).padStart(8, '0'))
+    }
+}

core/base/src/main/java/de/mm20/launcher2/serialization/UUIDSerializer.kt

@@ -0,0 +1,30 @@
+package de.mm20.launcher2.serialization
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.SerializationException
+import kotlinx.serialization.descriptors.PrimitiveKind
+import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import java.util.UUID
+
+object UUIDSerializer: KSerializer<UUID> {
+    override val descriptor: SerialDescriptor = PrimitiveSerialDescriptor(
+        "UUIDSerializer",
+        PrimitiveKind.STRING
+    )
+
+    override fun serialize(encoder: Encoder, value: UUID) {
+        encoder.encodeString(value.toString())
+    }
+
+    override fun deserialize(decoder: Decoder): UUID {
+        val string = decoder.decodeString()
+        return try {
+            UUID.fromString(string)
+        } catch (e: IllegalArgumentException) {
+            throw SerializationException("Invalid UUID format: $string", e)
+        }
+    }
+}