Add legacy designsystem module

app/ui/legacy/build.gradle.kts

@@ -5,6 +5,8 @@ plugins {
 
 dependencies {
     api(projects.app.ui.base)
+    api(projects.core.ui.legacy.designsystem)
+
     implementation(projects.app.core)
     implementation(projects.mail.common)
     implementation(projects.uiUtils.toolbarBottomSheet)

core/ui/legacy/README.md

@@ -0,0 +1,11 @@
+## Core - UI - Legacy
+
+The modules in this section are dedicated to the legacy UI implementation based on XML-based layouts for Android.
+
+> [!WARNING]
+> It's not suggested to use the contained modules for new features!
+>
+> This is only maintained for the purpose of supporting the existing implementation.
+
+> [!IMPORTANT]
+> Use the Composable UI along our [theme 2](../compose/theme2) and [design system](../compose/designsystem) design system instead.

core/ui/legacy/designsystem/README.md

@@ -0,0 +1,11 @@
+## Core - UI - Legacy - Design System
+
+This is the design system dedicated to the legacy UI implementation based on XML-based layouts for Android.
+
+> [!WARNING]
+> It's not suggested to use this design system for new features!
+>
+> This is only maintained for the purpose of supporting the existing implementation.
+
+> [!IMPORTANT]
+> Use the Composable UI along our [theme 2](../compose/theme2) and [design system](../compose/designsystem) design system instead.

core/ui/legacy/designsystem/build.gradle.kts

@@ -0,0 +1,12 @@
+plugins {
+    id(ThunderbirdPlugins.Library.android)
+}
+
+android {
+    namespace = "app.k9mail.core.ui.legacy.designsystem"
+}
+
+dependencies {
+    // TODO Remove this dependency once the legacy theme is available
+    api(libs.android.material)
+}

settings.gradle.kts

@@ -80,6 +80,7 @@ include(
     ":core:ui:compose:theme2:k9mail",
     ":core:ui:compose:theme2:thunderbird",
     ":core:ui:compose:testing",
+    ":core:ui:legacy:designsystem",
 )
 
 include(