added static presentations.

if there is a folder called "presentation" within the theme all jpg Pictures will be loaded on the whiteboard on themechange thru the website.

Packages/vr.teachr.displays/Runtime/Scripts/PresentationController.cs

+using Codice.Client.BaseCommands.IssueTracker;
 using System;
+using System.IO;
 using TeachR.ApplicationManager;
 using TeachR.WebCommunication;
 using UnityEngine;
+using TeachR.StructureTree;
 
 namespace TeachR.Displays
 {
@@ -13,6 +16,7 @@ namespace TeachR.Displays
         [RuntimeInitializeOnLoadMethod]
         private static void Init()
         {
+            ImpulseController.ThemeChangedHook += LoadPresentationOnThemeChange;
             CoachRtc.Persistent.On("loadPresentation", json => Load(json.GetValue<PresentationData>()));
             CoachRtc.Persistent.On("changeSlide", json => Presentation.Slide = int.Parse(json.content));
             CoachRtc.Persistent.On("clearPresentation", _ => Presentation = null);
@@ -26,7 +30,6 @@ namespace TeachR.Displays
         private static void Load(PresentationData json)
         {
             Presentation = new Presentation(json);
-            Debug.Log(Presentation.ToString());
             OnLoad?.Invoke();
         }
 
@@ -40,5 +43,26 @@ namespace TeachR.Displays
             if (Presentation != null) Presentation.Prev();
             else Debug.Log("No slides loaded yet");
         }
+
+
+        private static string folderPath;
+        private static string[] filePath;
+        // Look into themeFolder and load jpg-pictures to posters in classroom.
+        // If folder does not exist or is empty, no posters will be loaded.
+        public static async void LoadPresentationOnThemeChange(string fromFolder)
+        {
+            Debug.Log("ICH LEBE!");
+            folderPath = Path.Combine(Application.streamingAssetsPath, "Config~", fromFolder, "presentation");
+            if (!Directory.Exists(folderPath)) return;
+            filePath = Directory.GetFiles(folderPath, "*.jpg");// mehr dateiformate zulassen
+            if (filePath.Length > 0)
+            {
+               Presentation = await Presentation.FromFiles(filePath);
+            }
+            else
+            {
+                Debug.Log("No postercontent found");
+            }
+        }
     }
 }
\ No newline at end of file

Packages/vr.teachr.displays/TeachR.Displays.asmdef

@@ -10,7 +10,8 @@
         "GUID:df380645f10b7bc4b97d4f5eb6303d95",
         "GUID:5797ac88e999e2e42a3aa9bee208f62f",
         "GUID:f50e0b5d75e4c9348a7d42a1c5382977",
-        "GUID:0ced200546f7ed84e923e5314f07fa40"
+        "GUID:0ced200546f7ed84e923e5314f07fa40",
+        "GUID:71eb3b62d9c24a443ae2633f4a99eb65"
     ],
     "includePlatforms": [],
     "excludePlatforms": [