diff --git a/core/src/main/kotlin/io/github/sungbin/gitmessengerbot/core/bot/api/File.kt b/core/src/main/kotlin/io/github/sungbin/gitmessengerbot/core/bot/api/File.kt
index e11ebf2d..052bf97b 100644
--- a/core/src/main/kotlin/io/github/sungbin/gitmessengerbot/core/bot/api/File.kt
+++ b/core/src/main/kotlin/io/github/sungbin/gitmessengerbot/core/bot/api/File.kt
@@ -13,7 +13,7 @@ import io.github.jisungbin.gitmessengerbot.common.core.Storage
 
 internal class File {
     fun save(path: String, content: String) = Storage.write(path, content)
-    fun read(path: String, _null: String? = null) = Storage.read(path, _null)
+    fun read(path: String, _null: String? =  null) = Storage.read(path, _null)
     fun append(path: String, content: String, appendPrefix: String) =
         Storage.append(path, content, appendPrefix)
 }
diff --git a/picture/ic_round_logo_512.png b/picture/ic_round_logo_512.png
new file mode 100644
index 00000000..83fc8e2c
Binary files /dev/null and b/picture/ic_round_logo_512.png differ
diff --git a/picture/preview-dashboard.png b/picture/preview-dashboard.png
new file mode 100644
index 00000000..b11c9360
Binary files /dev/null and b/picture/preview-dashboard.png differ
diff --git a/picture/preview-editor.png b/picture/preview-editor.png
new file mode 100644
index 00000000..eac154f3
Binary files /dev/null and b/picture/preview-editor.png differ
diff --git a/picture/preview-setting.png b/picture/preview-setting.png
new file mode 100644
index 00000000..2a211b3d
Binary files /dev/null and b/picture/preview-setting.png differ
diff --git a/picture/simple-banner.png b/picture/simple-banner.png
new file mode 100644
index 00000000..560f7d1a
Binary files /dev/null and b/picture/simple-banner.png differ
diff --git a/presentation/build.gradle.kts b/presentation/build.gradle.kts
index 0c7dcab9..2bac51d1 100644
--- a/presentation/build.gradle.kts
+++ b/presentation/build.gradle.kts
@@ -48,6 +48,10 @@ android {
             isDebuggable = false
             isMinifyEnabled = true
             isShrinkResources = true
+
+            ndk {
+                debugSymbolLevel = "FULL"
+            }
         }
     }