Adds a "huggingface" button variant, and makes it the default for gr.LoginButton and gr.DuplicateButton

[abidlabs]

For more consistency with HF Hub branding, this PR adds a "huggingface" button variant, and makes it the default for gr.LoginButton

Here are the "primary", "secondary", and "clear" variants:

Compare with HF Hub branding: https://huggingface.co/docs/hub/en/oauth#branding

Closes: #5628

wdyt @hannahblair @Wauplin @gary149 @julien-c

[gradio-pr-bot]

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---

Install Gradio from this PR

pip install https://gradio-pypi-previews.s3.amazonaws.com/c236e82e823ac4316532e69bd1994048d9225301/gradio-4.42.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@c236e82e823ac4316532e69bd1994048d9225301#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-npm-previews.s3.amazonaws.com/c236e82e823ac4316532e69bd1994048d9225301/gradio-client-1.5.1.tgz

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
@gradio/button	minor
gradio	minor

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Adds a "huggingface" button variant, and makes it the default for gr.LoginButton and gr.DuplicateButton

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[abidlabs]

Note that the original issue suggested dark buttons on a light theme and vice versa but that is jarring, especially in dark mode (and imo defeats the point of a light/dark setting) so instead, I've gone with light-on-light and dark-on-dark.

[abidlabs]

Also I've opted not to change the border radius, as that would break the ability of the button to be grouped with other components, e.g.

with gr.Group():
  gr.Textbox()
  gr.LoginButton()

or

with gr.Group():
  gr.DuplicateButton()
  gr.LoginButton()

[Wauplin]

For reference for other reviewers, here is the current style

[Wauplin]

Thanks for handling this @abidlabs! I like your changes which looks much closer to the "official" branding :)

Instead of "clear" I would maybe renamed it "huggingface" to emphasize it's HF branding. The advantage of doing so is been able to update the style in the future if we want (compared to "clear" which can only mean "no-background"). For example for more rounded border or to have a different font.

[julien-c]

maybe we could add a rounded=True option?

[abidlabs]

maybe we could add a rounded=True option?

@julien-c I'm a little hesitant with rounded borders because they look inconsistent with other buttons (or other components) generally in the Gradio app which all have a very small border radius, and it wouldn't play well with gr.Group, which groups together different components (e.g. if you want to stick a textbox next to a button, its much nicer if they have less rounded borders:

import gradio as gr

with gr.Blocks() as demo:
    with gr.Group():
        with gr.Row():
          gr.Textbox(show_label=False, scale=2)
          gr.LoginButton()

demo.launch()

Instead of "clear" I would maybe renamed it "huggingface" to emphasize it's HF branding. The advantage of doing so is been able to update the style in the future if we want (compared to "clear" which can only mean "no-background"). For example for more rounded border or to have a different font.

👍

[hannahblair]

tested in mobile and desktop, looks great! thanks @abidlabs!

[Wauplin]

Thank you!

[abidlabs]

Thanks all!