step 3: add widget shell and renderer foundation

examples/basic_digital.py

@@ -0,0 +1,25 @@
+# pyright: reportGeneralTypeIssues=false
+
+import dearpygui.dearpygui as dpg
+
+import dpg_gauges as dpgg
+
+
+def main() -> None:
+    dpg.create_context()
+    try:
+        with dpg.window(label="Digital Gauge", width=320, height=180):
+            dpgg.digital_gauge(
+                tag="speed", label="Speed", value=72, unit="km/h", width=260, height=100
+            )
+
+        dpg.create_viewport(title="dpg-gauges digital", width=360, height=220)
+        dpg.setup_dearpygui()
+        dpg.show_viewport()
+        dpg.start_dearpygui()
+    finally:
+        dpg.destroy_context()
+
+
+if __name__ == "__main__":
+    main()