Add magtag example

examples/display_shapes_simpletest_magtag.py

@@ -0,0 +1,67 @@
+import board
+import displayio
+from adafruit_display_shapes.rect import Rect
+from adafruit_display_shapes.circle import Circle
+from adafruit_display_shapes.roundrect import RoundRect
+from adafruit_display_shapes.triangle import Triangle
+from adafruit_display_shapes.line import Line
+from adafruit_display_shapes.polygon import Polygon
+
+# use built in display (PyPortal, PyGamer, PyBadge, CLUE, etc.)
+# see guide for setting up external displays (TFT / OLED breakouts, RGB matrices, etc.)
+# https://learn.adafruit.com/circuitpython-display-support-using-displayio/display-and-display-bus
+display = board.DISPLAY
+
+# Make the display context
+splash = displayio.Group(max_size=20)
+display.show(splash)
+
+# Make a background color fill
+color_bitmap = displayio.Bitmap(display.width, display.height, 1)
+color_palette = displayio.Palette(1)
+color_palette[0] = 0xFFFFFF
+bg_sprite = displayio.TileGrid(color_bitmap, x=0, y=0, pixel_shader=color_palette)
+splash.append(bg_sprite)
+##########################################################################
+
+splash.append(Line(5, 74, 10, 110, 0x000000))
+splash.append(Line(15, 74, 20, 110, 0x000000))
+splash.append(Line(25, 74, 30, 110, 0x000000))
+splash.append(Line(35, 74, 40, 110, 0x000000))
+
+# Draw star
+polygon = Polygon(
+    [
+        (255, 40),
+        (262, 62),
+        (285, 62),
+        (265, 76),
+        (275, 100),
+        (255, 84),
+        (235, 100),
+        (245, 76),
+        (225, 62),
+        (248, 62),
+    ],
+    outline=0x000000,
+)
+splash.append(polygon)
+
+triangle = Triangle(170, 20, 140, 90, 210, 100, fill=0x999999, outline=0x000000)
+splash.append(triangle)
+
+rect = Rect(80, 20, 41, 41, fill=0x999999, outline=0x666666)
+splash.append(rect)
+
+circle = Circle(100, 100, 20, fill=0xFFFFFF, outline=0x000000)
+splash.append(circle)
+
+rect2 = Rect(70, 85, 61, 30, outline=0x0, stroke=3)
+splash.append(rect2)
+
+roundrect = RoundRect(10, 10, 61, 51, 10, fill=0x666666, outline=0x000000, stroke=6)
+splash.append(roundrect)
+
+display.refresh()
+while True:
+    pass