workaound left in as comments for documentation

Author: RetiredWizard

adafruit_imageload/png.py

@@ -112,6 +112,21 @@ def load(  # noqa: PLR0912, PLR0915, Too many branches, Too many statements
             filladj = y * ((4 - (scanline % 4)) % 4)
             dst = y * scanline + filladj
             src = y * (scanline + 1) + 1
+            # Work around the bug in displayio.Bitmap - removed afer resolution
+            # however left here as comments because it's helpful in
+            # understanding the memoryview scanline and adjustment calculations
+            # https://github.com/adafruit/circuitpython/issues/6675
+            # https://github.com/adafruit/circuitpython/issues/9707
+            #
+            #    pixels_per_byte = 8 // depth
+            #    for x in range(0, width, pixels_per_byte):
+            #        byte = data_bytes[src]
+            #        for pixel in range(pixels_per_byte):
+            #            bmp[x + pixel, y] = (byte >> ((pixels_per_byte - pixel - 1) * depth)) & (
+            #                (1 << depth) - 1
+            #            )
+            #        src += 1
+            #
             mem[dst : dst + scanline] = data_bytes[src : src + scanline]
         return bmp, pal
     # RGB, RGBA or Grayscale