· None of the above quite fits
· App interface looks or behaves oddly
· Transparent/translucent part in cover art becomes pitch black
· N/A
To clarify: those black areas are meant to be transparent or translucent. Original cover art file at:
https://coverartarchive.org/release/0ea543f1-7c57-405d-a8bd-a86e688e8037/43832024670.png
The album png image file has a border of transparent pixels, about 32 pixels wide at the sides and 44 pixels high at the top and bottom. The border in the image will display with any color the renderer uses as a background color.
If you open the image in Chrome browser, the border displays as grey, and in Safari browser the border displays as white because those are the background colors that they use. Roon is apparently using black for the image background color. There is no standard for a default background color, and all of them are rendering the transparent border pixels correctly.
Yeah of course I know that there are transparent pixels, no need to say that again. Although it might be correct, but when there’s dynamic background (in case of Roon ARC), it should display the background, respecting the transparency.
If you open the image in Chrome browser, the border displays as grey, and in Safari browser the border displays as white because those are the background colors that they use.
That’s when it’s just displaying the image. Browsers do display actual background when it’s embedded in contents.
I don’t disagree with what you say. It’s just odd for an album cover to have a border of completely transparent pixels (they are all completely transparent and it isn’t a gradient transition from transparent to opaque). I almost think that the artist forgot to crop out the pixels before publishing the image.
Irrespective of artistic intent, Roon should render transparency correctly. If I recall previous discussion correctly, it doesn’t. Search might throw up the earlier posts, but I’m going to open a bottle of red instead… 
Forgot to mention that this happens on both Roon and ARC.
Hello @YuiFunami,
Thank you for the clarification.
What you’re seeing is by design. At the moment, Roon (including ARC) renders fully transparent pixels in album artwork against a fixed background color, rather than dynamically compositing them with the surrounding UI background. As a result, transparent areas may appear black depending on the rendering context.
While we understand the expectation that transparency could inherit or blend with the dynamic background, this behavior is currently not implemented and is consistent with how Roon handles artwork rendering today.
If this is something you’d like to see improved, we’d recommend submitting a Feedback > Feature Suggestions on the Community forum. That will allow other users to weigh in and help the product team gauge how important this behavior is across the wider user base.
Thanks for taking the time to raise this and for the detailed discussion.
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