[Libreoffice-bugs] [Bug 134213] Changed transparency handling in Draw breaks export to PNG of transparent objects over pictures with just default Layout layer, forces use of additional layer(s) for transparent shape(s)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=134213

--- Comment #22 from mwtjunkmail at gmail.com ---
Created attachment 162445
  --> https://bugs.documentfoundation.org/attachment.cgi?id=162445&action=edit
LO ODG side-by-side transparency bug comparison

LO ODG file containing two identical slides, one has a transparent object on
it, the other does not. Exporting them as PNG causes the one with the
transparent object to appear blanched with a loss of detail. 

That's happening because the image beneath the transparent object is being
inappropriately assigned a transparency effect, causing blanching and loss of
detail, most apparent when flipping between the exported PNG files in Windows'
default Photos program, but also obvious in paint.net (which does well to
indicate when transparency is applied to something).

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