1184362 - cropped math formula image not readable in dark reader theme

Status: RESOLVED INVALID

(Toolkit :: Reader Mode, defect)

Description

[berliner.schildkroete]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:39.0) Gecko/20100101 Firefox/39.0
Build ID: 20150629114848

Steps to reproduce:

Open a wikipedia article with math formula images inside. Open the reader view. Switch to dark reader theme.
I.e. https://en.wikipedia.org/wiki/Help:Displaying_a_formula
Paragraph: Formatting using TeX


Actual results:

The white background color of a math formula image is mostly cropped. In dark reader view it is impossible to read the article.


Expected results:

Dont crop images with black text color or white background in dark reader view.

Comment 1

[Loic]

Attachment: dark-theme.png

Comment 2

[Vasilica Tamas, QA [:vtamas]]

I was able to reproduce this issue on Firefox 47.0a1 (2016-02-11), Firefox 46.0a2 (2016-02-11), Firefox 45 Beta 4 (20160208194709) and Firefox 44.0.2 (20160209150140) under Ubuntu 14.04 32-bit and Mac OS X 10.9.5.

Comment 3

[:Gijs (he/him)]

I'm not sure what the desired fix here is. The images don't look as bad as in the screenshot for me on OS X: http://imgur.com/eqGZci7 . Ultimately though, they're images in <img> tags that therefore show up with black text, and that's not something we can fix/change. If wikipedia used <svg> directly from HTML instead of sticking them in an <img> tag, it would do better under these circumstances.

As I don't think there's a reader mode bug to fix with the display of these images, resolving as invalid.