iTunesConnect - How to retrieve 1024x1024 icon of an existing app?

Question

I've noticed that since iOS 11, the App's "App Icon" asset in the catalog must include a 1024x1024 sized version in order to be submitted to the App Store.

I know that the 1024x1024 icon was previously added directly to the iTunesConnect app page, but I can not seem to get any link or a way to display that icon in full size to grab it from the iTunesConnect page.

How can I retrieve the existing 1024x1024 icon for an app already published? I do not have the PSD file for the original icon.

Dear developer,

We have discovered one or more issues with your recent delivery for [App]. Your delivery was successful, but you may wish to correct the following issues in your next delivery:

Missing Marketing Icon - iOS Apps must include a 1024x1024px Marketing Icon in PNG format. Apps that do not include the Marketing Icon cannot be submitted for App Review or Beta App Review.

After you’ve corrected the issues, you can use Xcode or Application Loader to upload a new binary to iTunes Connect.

Regards,

The App Store team

Answer 1

EDIT: I made a simple tool for this:
https://erkanyildiz.me/lab/icon1024/

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Go to your app's iTunes page: https://itunes.apple.com/us/app/MyApp/id000000000

Find the URL for your app's icon in the page inspecting source code. It should be in this format:

http://isN.mzstatic.com/image/thumb/Purple128/v4/xx/yy/zz/xxyyzzaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/source/175x175bb.jpg

Replace last 175x175 part with 1024x1024 and jpg part with png:

http://isN.mzstatic.com/image/thumb/Purple128/v4/xx/yy/zz/xxyyzzaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/source/1024x1024bb.png

Now you can get the original icon.

Note: Those 2 chars after dimension are used as Image Resize Style.

bb: you can specify any dimension you want, it will return a resized version for dimensions less than 1024x1024. But, if you specify a dimension larger than 1024x1024, it will return 1024x1024 anyway.

cc: it will return the dimension you specify.

ff: it also seems to be a valid option, but I have no idea what it does.

ss: another valid option, and again no idea.