Did you want it to be the same dimensions? I can help.

I think the README is actually doing some manipulation to the image:

It's better? https://github.com/cpp-linter/.github/tree/update-banner/profile

It does on desktop, but mobile is a little squished.

Yes, me too. I'll try to find a better width and height. it should be too wide for mobile.

I think the min width used should be 320 (going off of common dimensions listed for portrait mode on various phones - see this site)

Then the height would be dependent on the image's aspect ratio.

I think github supports the min-width and min-height style properties. So using the image dimensions 1163x320, the recommended minimum would be

    <img src="/assets/readme-banner.png" min-width="320" min-height="88" alt="cpp-linter_brand_logo" />

In order to view the result in the local environment, I moved readme-banner.png to the profile folder and remove the assets folder.

I hope the image is displayed as big as possible, so I change to width to 400 and remove height from README.md, it looks well on desktop and mobile.

Using my above suggestion, min-width + min-height = constant aspect ratio but using as much space as possible.

Using a strict width limits the largest size the image will be. And without a height specified, the aspect ratio may get distorted.

Updated with your suggestion, it looks great 👍

Oh NO, it seems I can not change the refer structure

Oh NO, it seems I can not remove the assets folder.

I was just going to say, something didn't work

It works now.

I think the current banner on the org overview page is a bit larger than I expected, and users may be drawn to the banner rather than the text/repositories below.
@2bndy5 do you have any suggestions about how to make it smaller? it's okay to be 1/2 or 2/3 of what it is now.

You could scale down the image. That's why it was so big to begin with. I needed something that could be scaled down because scaling an image up produced distortion.