diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 3af1e82b..6358adb0 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -5,7 +5,7 @@
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="jbr-17" />
+        <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 773fe0fb..0ad17cbd 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/java/com/bnyro/wallpaper/util/LocalWallpaperHelper.kt b/app/src/main/java/com/bnyro/wallpaper/util/LocalWallpaperHelper.kt
index d2a8bee2..bd32d8b4 100644
--- a/app/src/main/java/com/bnyro/wallpaper/util/LocalWallpaperHelper.kt
+++ b/app/src/main/java/com/bnyro/wallpaper/util/LocalWallpaperHelper.kt
@@ -1,14 +1,45 @@
 package com.bnyro.wallpaper.util
 
 import android.content.Context
+import android.graphics.BitmapFactory
 import androidx.core.net.toUri
 import androidx.documentfile.provider.DocumentFile
 import com.bnyro.wallpaper.enums.WallpaperConfig
 
 object LocalWallpaperHelper {
+    private fun getAllFilesInCurrentDir(directory: DocumentFile?): List<DocumentFile> {
+        val files = mutableListOf<DocumentFile>()
+
+        val contents = directory?.listFiles().orEmpty()
+        files.addAll(contents.filter { it.isFile })
+
+        contents.filter { it.isDirectory }.forEach {
+            files.addAll(getAllFilesInCurrentDir(it))
+        }
+
+        return files
+    }
+
+    private fun DocumentFile.isImage(context: Context): Boolean {
+        val bmOptions = BitmapFactory.Options().apply {
+            inJustDecodeBounds = true
+        }
+        return try {
+            context.contentResolver.openInputStream(uri).use {
+                BitmapFactory.decodeStream(it, null, bmOptions)
+            }
+            bmOptions.outWidth != -1 && bmOptions.outHeight != -1
+        } catch (_: Exception) {
+            false
+        }
+    }
+
     fun getLocalWalls(context: Context, config: WallpaperConfig): List<DocumentFile> {
         return config.localFolderUris.map {
-            DocumentFile.fromTreeUri(context, it.toUri())?.listFiles().orEmpty().toList()
-        }.flatten()
+            val dir = DocumentFile.fromTreeUri(context, it.toUri())
+            getAllFilesInCurrentDir(dir)
+        }
+            .flatten()
+            .filter { it.isImage(context) }
     }
 }