Show colour of transparent background

[OJW]

Consider the case where you're creating some transparent PNG images which will be displayed above a certain colour background. You set document background colour, so that any drawing you do will be against the correct background. But this causes the PNG images you export to have a coloured background not a transparent background (#171811).

Fine, so you set the background colour to be (say) 0x40404000 which is the colour you want but marked as transparent, telling Inkscape that you want exports to be transparent. But if you do this, Inkscape displays the background as white 0xFFFFFFFF, which means you can't see your light-coloured drawing.

Suggestion here is: ignore the transparency of document background for the purposes of displaying Inkscape's UI (because there can't be anything behind it), but preserve the specified transparency when exporting a PNG image.

[su_v (suv-lp)]

> (…) ignore the transparency of document background for the purposes
> of displaying Inkscape's UI (…) but preserve the specified transparency
> when exporting a PNG image.

Already implemented in Inkscape trunk (will be available in the next major release 0.49).

Linking as duplicate to
Bug #169623 (sf1492333) “Canvas color option”
<https://bugs.launchpad.net/inkscape/+bug/169623>