Open Bug 1674272 Opened 4 years ago Updated 2 years ago

Change background fill colour of Custom Images for Top Sites with transparency (Dark Theme)


(Firefox :: Top Sites, defect)

Firefox 82




(Reporter: robin.a.meade, Unassigned)


User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:82.0) Gecko/20100101 Firefox/82.0

Steps to reproduce:

I added a Top Site to my New Tab page with a Custom Image URL pointing to a image that has transparency:

Actual results:

The transparency was filled with a white colour, even though I was using the Dark theme.

Expected results:

The transparency should be filled with a dark colour, as was fixed for favicon images for Top Sites in bug 1454730.

I was able to reproduce it on latest Nightly version 84.0a1 (2020-11-02)(64-bit) on Ubuntu 18.04 and Windows 10 using a dark or a default theme.
I will set a component to have a starting point of this. Please if this is not the right component feel free to route this ticket to the corresponding team, thanks!

Component: Untriaged → ImageLib
Ever confirmed: true
Product: Firefox → Core

The suggested severity revolves around S3

Thanks Marcela!
Andrew, does this need immediate (or quick) fix?

Severity: -- → S3
Flags: needinfo?(aosmond)

I suspect this doesn't need anything from imagelib? The linked image has a transparent background so it should blend with whatever is behind it. I suppose in this case that is white.

Component: ImageLib → New Tab Page
Flags: needinfo?(aosmond)
Product: Core → Firefox
Component: New Tab Page → Top Sites
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