Cannot Add White Text with Black Outline To This Gif in P mode

[alanyee]

What did you do?

I am following the guidance given here #3128 with the following gif:

What did you expect to happen?

I was hoping to get white text with a black outline such as this:

This is possible via converting the frame to RGB or RGBA, but there seems to be some weird fuzz when I convert the frames.

What actually happened?

I get brown text with a fuzzy black outline:

On other gifs, I get white text, but the text_stroke is not black:

What are your OS, Python and Pillow versions?

• OS: Ubuntu 18.04.4 LTS
• Python: 3.6.9
• Pillow: 7.0.0

import io
import sys

from PIL import Image, ImageDraw, ImageFont, ImageSequence

# This gif opens up in P mode
black = 0
white = 251
padding = 1
size = 40
fnt = ImageFont.truetype('impact.ttf', size)
im = Image.open('Pictures/test.gif')
# A list of the frames to be outputted
x = 0
y = 0
text = sys.argv[1]
frames = []
for frame in ImageSequence.Iterator(im):
    # Draw the text on the frame
    d = ImageDraw.Draw(frame)

    d.text((x, y), text, font=fnt, fill=white, stroke_width=1, stroke_fill=black)
    del d
    b = io.BytesIO()
    frame.save(b, format="GIF")
    frame = Image.open(b)
    # Then append the single frame image to a list of frames
    frames.append(frame)
# Save the frames as a new image
frames[0].save('Pictures/out.gif', save_all=True, append_images=frames[1:])

[alanyee]

Nevermind, I realize the limitations of palette mode now, though I am still uneasy about the drop in picture quality during the conversion.