more fixes

Editor/Core/SplashBuildPaths.cs

@@ -109,6 +109,13 @@ namespace SplashEdit.EditorCode
             return Path.Combine(BuildOutputDir, $"scene_{sceneIndex}.splashpack");
         }
 
+        /// <summary>
+        /// Default license file path (SPLASHLICENSE.DAT) shipped in the package Data folder.
+        /// Resolved relative to the Unity project so it works on any machine.
+        /// </summary>
+        public static string DefaultLicenseFilePath =>
+            Path.GetFullPath(Path.Combine("Packages", "net.psxsplash.splashedit", "Data", "SPLASHLICENSE.DAT"));
+
         /// <summary>
         /// Gets the loader pack (loading screen) output path for a scene by index.
         /// Uses a deterministic naming scheme: scene_0.loading, scene_1.loading, etc.

Editor/Core/SplashSettings.cs

@@ -151,7 +151,7 @@ namespace SplashEdit.EditorCode
         /// </summary>
         public static string LicenseFilePath
         {
-            get => EditorPrefs.GetString(Prefix + "LicenseFilePath", "");
+            get => EditorPrefs.GetString(Prefix + "LicenseFilePath", SplashBuildPaths.DefaultLicenseFilePath);
             set => EditorPrefs.SetString(Prefix + "LicenseFilePath", value);
         }