Add simple test layout

tests/test1.yaml

@@ -3050,6 +3050,14 @@ color:
     blue: 100%
   - id: kbx_green
     hex: "3DEC55"
+  - id: layout_black
+    red: 100%
+    green: 100%
+    blue: 100%
+  - id: layout_white
+    red: 0%
+    green: 0%
+    blue: 0%
 
 display:
   - platform: lcd_gpio
@@ -4315,3 +4323,42 @@ alarm_control_panel:
       then:
         - lambda: !lambda |-
             ESP_LOGD("TEST", "State change %s", alarm_control_panel_state_to_string(id(alarmcontrolpanel1)->get_state()));
+
+graphical_layout:
+  id: test_graphical_layout
+  layout:
+    type: horizontal_stack
+    child_align: STRETCH_TO_FIT_HEIGHT
+    items:
+      - type: fixed_dimension_panel
+        width: 100
+        height: 100
+        border: 1
+        child:
+          type: text_panel
+          text: "Simple text panel"
+          font: roboto
+      - type: vertical_stack
+        item_padding: 1
+        margin: 1
+        padding: 1
+        border: 1
+        border_color: layout_black
+        items:
+          - type: display_rendering_panel
+            height: 50
+            width: 50
+            lambda: |-
+              it.filled_circle(25, 25, 10);
+          - type: text_run_panel
+            texT_align: BASELINE_CENTER
+            runs:
+              - font: roboto
+                text: Hello
+              - font: roboto
+                text: World
+                background_color: layout_black
+                foreground_color: layout_white
+              - font: roboto
+                text: !lambda |-
+                  return "Dynamic text";