diff --git a/engine/tests/ui_test.c b/engine/tests/ui_test.c
index eeeaa8c..e48dc62 100644
--- a/engine/tests/ui_test.c
+++ b/engine/tests/ui_test.c
@@ -19,9 +19,13 @@ void render(float dt, int *game) {
 
 
     bzUIBegin(ui, GetScreenWidth(), GetScreenHeight());
+    static BzUIFlags flags = BZ_UI_FLEX_DIR_COLUMN | BZ_UI_FLEX_ALIGN_CENTER | BZ_UI_FLEX_JUSTIFY_CENTER;
+    static i32 width = 1280;
+    static i32 height = 720;
+    SetWindowSize(width, height);
     bzUISetParentLayout(ui, *&(BzUILayout) {
             .type = BZ_UI_LAYOUT_FLEX_BOX,
-            .flags = BZ_UI_FLEX_DIR_COLUMN | BZ_UI_FLEX_ALIGN_CENTER | BZ_UI_FLEX_JUSTIFY_CENTER,
+            .flags = flags
     });
     if (bzUIButton(ui, "Hello world")) {
         bzLogInfo("Hello world");
@@ -35,7 +39,23 @@ void render(float dt, int *game) {
     bzUIEnd(ui);
 
     rlImGuiBegin();
-    igShowDemoWindow(NULL);
+    igBegin("DebugUI", NULL, 0);
+    igSliderInt("Width", &width, 200, 1600, "%d", 0);
+    igSliderInt("Height", &height, 100, 1000, "%d", 0);
+    const char *flexOpt[] = {"DIR_ROW", "DIR_COLUMN", "ALIGN_START",
+                             "ALIGN_CENTER", "ALIGN_END", "JUSTIFY_START",
+                             "JUSTIFY_CENTER", "JUSTIFY_END", "JUSTIFY_SPACE_BETWEEN",
+                             "JUSTIFY_SPACE_AROUND", "JUSTIFY_SPACE_EVENLY"};
+    i32 numOpts = sizeof(flexOpt) / sizeof(*flexOpt);
+    for (i32 i = 0; i < numOpts; i++) {
+        bool opt = (flags & (1 << i)) != 0;
+        igCheckbox(flexOpt[i], &opt);
+        flags &= ~(1 << i);
+        if (opt)
+            flags |= (1 << i);
+    }
+
+    igEnd();
     rlImGuiEnd();
 }