Genshin Impact topic: add logo

[oxygen-dioxide]

Please confirm this pull request meets the following requirements:

• I followed the contributing guidelines: https://github.com/github/explore/blob/main/CONTRIBUTING.md.
• I am not the sole author or employee of a company who created either the topic I am modifying/adding or the collection entry I am modifying/adding.

Which change are you proposing?

• Suggesting edits to an existing topic or collection
• Curating a new topic or collection
• Something that does not neatly fit into the binary options above

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Editing an existing topic or collection

I'm suggesting these edits to an existing topic or collection:

• Image (and my file is *.png, square, dimensions 288x288, size <= 75 kB)
• Content (and my changes are in index.md)

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[oxygen-dioxide]

How to make it less than 75kb while keeping the image dimensions 288*288?

[kenyonj]

As you've seen, an image like this doesn't translate well with our restraints. Perhaps we can use one of the transparent logotype pngs you can find online? I just grabbed a transparent one and edited the canvas size to be 288x288, what do you think of this? (it's 28kb)

[kenyonj]

see above

[oxygen-dioxide]

We can't directly use the transparent logo here, because it looks strange if the user uses a bright theme:

[oxygen-dioxide]

Added a black background to this image:

[kenyonj]

We can't directly use the transparent logo here, because it looks strange if the user uses a bright theme:

FWIW, that's the same theme I have. If you want to go with the static black background, go for it. If you update the PR I'll get it merged in.

[kenyonj]

LGTM, thanks for your contribution!