That doesn't work - that gets you Dropbox's resized and recompressed version, which breaks the effect (likely it strips the ICC profile)

There's something weird happening.

imgur shows straight red on my 2015 Macbook Pro, but my iPhone 7 shows the logo.

The dropbox thumbnail link (with ?dl=0) shows the logo. Opening the link with ?dl=1 in Preview shows straight red. I think Dropbox is doing some weird thumbnail processing.

I can see the logo just fine on the imgur link, but I can't see the original in firefox or in GIMP.

I wonder if it has to do with imgur compressing the image, or maybe approximating/ignoring the colorspace as was mentioned above.

I can see logo in downloaded png at every screen I have, including old 2008 Acer. Never screens display it better, older screens need to be tilted.

I can see the logo on the imgur link on my TouchBar MBP