Add label textbox color

[AndreiMoraru123]

Context

PR for: #9199 (comment)

How to use

import torch
from PIL import Image
from torchvision.utils import draw_bounding_boxes

boxes = torch.tensor(
    [[100, 100, 150, 150], [50, 50, 100, 100], [300, 100, 400, 300]],
    dtype=torch.float32,
)

image = torch.ones((3, 500, 500), dtype=torch.uint8) * 255

colors = ["blue", "yellow", "red"]
label_bg_colors = ["green", "magenta", "orange"]
image = draw_bounding_boxes(
    image,
    boxes,
    colors=colors,
    width=1,
    fill=False,
    labels=colors,
    label_background_colors=label_bg_colors,  # new param
    fill_labels=True,  # only does something when fill_labels is set to True
)
img = Image.fromarray(image.permute(1, 2, 0).numpy())
img.show()

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/vision/9204

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[AntoineSimoulin]

Also, is it possible to apply linting with pre-commit run --all-files as detailed in the contributing guidelines?

[AndreiMoraru123]

Also, is it possible to apply linting with pre-commit run --all-files as detailed in the contributing guidelines?

Must've missed the memo. I noticed now the repo has flake8 and ufmt. Hopefully, running the pre-commit on the modified files should be enough in this case.

[github-actions]

Hey @AntoineSimoulin!

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