Under Investigation Opaque black overlay at the bottom of attachments is problematic

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Joined 2003
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Not the most urgent issue, but it keeps annoying me.

I prepare an image with a clean white background. 100% white.

When it renders in the forum image-view, there's a big shadow on the bottom. I checked my source, 100% white. And when I open my image outside the forum viewer it is 100% white. But my eyes and several tools say there is a shadow. And it is 3/4 white where I put full white. That's a 2.5dB display error in audio terms.
75%white.png


Yes I can open images outside the forum. But in recent days I have seen screen-grabs which appeared to be shadowed twice. One (not here) appeared to be 25% white bottom shadoow for no reason except screen-grabs. (No we can't teach all e-geeks how to handle images nicely.)

Is this a simple option that can be set off?
 
this should go to post #4883
But the preview does not show the message being pointed at, but (I assume) the top of the thread?

And it opens in the same tab. If I don't notice that at the time I can get more lost than usual.

Yes, I found the "share this post" trick after almost every other link-looking dingus on the post. Linkage is the CORE of the World Wide Web. Why hide it, or present some other result on the link?
 
Is this “elegant shadow” feature already turned off?
Checking PRR’s post #29 pictures with forum picture viewer, I see clean white background. Also, following provided link opens exactly linked post and not top of the page.
If that is relevant, I use Chrome and Windows 11.
 
I am sorry for not being clearer, and not meeting standards.

https://www.diyaudio.com/community/...it-ig-72-signal-generator.382925/post-6938757

Click on the (either) image in my post #29 so it renders IN the forum image-display pop-up.

BTW: why/how is it impossible to get a link to a specific post? That link above, by default, points to the top of the thread.
I don't see any shadow at all, am I doing it wrong? I went to that post, clicked on the image so it popped up as a "modal" on top of the screen with the background greyed out. Please provide more specific instructions. Me <- OSX / Chrome.

1644822498509.png
 
Please provide more specific instructions.
Hi Jason, if you zoom in on the image in the image preview box, you may see the bottom pixels are shaded. (60 pixels in my preview). This is necessary for the white/grey metadata text (filename/posting legend) to be visible against a white background/above the image. What PRR is seeing, are the top pixels used for a smooth grad to white. If metadata display was turned off for the image preview, the shading would become unnecessary. I guess it's a matter of preference, to display metadata or to preserve images "as is" in the preview box. So not a bug 🙂.

Regards,
Dagfinn
shading_mdtxt.JPG
 
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Ahhhhh got it. The (+) zoom tool, and there is an alpha channel overlay at the bottom of the screen. Got it! Let's see what can be done. I agree that does not suit our site's need for technical information. I suspect it's there purely to allow the light text to be visible on light images. Perhaps that text can just go, along with the overlay.
 
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