Changed startup reminder

core/src/mindustry/core/Control.java

@@ -429,7 +429,16 @@ public class Control implements ApplicationListener, Loadable{
 
         //just a regular reminder
         if(!OS.prop("user.name").equals("anuke") && !OS.hasEnv("iknowwhatimdoing")){
-            ui.showInfo("[scarlet]6.0 is not supposed to be played.[] Go do something else.");
+            app.post(() -> app.post(() -> {
+                ui.showStartupInfo("[accent]v6[] is currently in [accent]pre-alpha[].\n" +
+                "[lightgray]This means:[]\n" +
+                "- Content is missing\n" +
+                "- Most [scarlet]Unit AI[] does not work\n" +
+                "- Many units are [scarlet]missing[] or unfinished\n" +
+                "- The campaign is completely unfinished\n" +
+                "- Everything you see is subject to change or removal." +
+                "\n\nReport bugs or crashes on [accent]Github[].");
+            }));
         }
 
         //play tutorial on stop

core/src/mindustry/core/UI.java

@@ -347,6 +347,14 @@ public class UI implements ApplicationListener, Loadable{
         }}.show();
     }
 
+    public void showStartupInfo(String info){
+        new Dialog(""){{
+            getCell(cont).growX();
+            cont.margin(15).add(info).width(400f).wrap().get().setAlignment(Align.left);
+            buttons.button("$ok", this::hide).size(110, 50).pad(4);
+        }}.show();
+    }
+
     public void showErrorMessage(String text){
         new Dialog(""){{
             setFillParent(true);