"Export PNG Image" with non-alpha bit depth always renders black background
Steps to reproduce:
- open Inkscape
- create or load any image
- go to "File" -> "Export PNG Image" (or press Shift+Ctrl+E)
- expand the "Advanced" section
- select any "Bit depth" without an alpha channel, e.g. "RGB_8" or "Gray_8"
- click "Export"
What happened?
Inkscape renders the objects in the exported image against a black background:
What should have happened?
Inkscape should have rendered the exported image against the document background color defined under "Edit" -> "Document Properties" -> "Page" -> "Background" (which defaults to transparent white).
Inkscape Version and Operating System:
- Inkscape Version: 1.0rc1 (09960d6f, 2020-04-09)
- Operating System: Windows 10 Enterprise
- Operating System version: 1909
Sample file used for the screenshots above: drawing.svg