332612 - Take background images into account when reversing selection colors

Status: RESOLVED DUPLICATE of bug 292191

(Core :: Layout: Text and Fonts, defect)

Description

[Grey Nicholson (they/them)]

At the moment, Firefox inverts selection colours when a page's background colour is too similar to the default selection colours (fixed by bug 56314), but it doesn't take into account the page's background image.

For example, my default selection colours are white text on a grey background. The background colour at http://www.dashes.com/anil/ is dark, so this is inverted. But the main body has a white background image and grey text, so the selection colours are exactly the same as the unselected text's colours.

The selection is visually indistinguishable from the other text; right-clicking the selection shows the context menu for selected text, demonstrating that the text is actually selected.

Firefox should either:

1: take into account the colour of any background image before reversing selection colours.

2: assume there is reasonable contrast between the page's text and background, and only invert the selection colours if the colour of the *text* (rather than the background) would match too closely.

Comment 1

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

*** This bug has been marked as a duplicate of 292191 ***