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Type: Bug
Resolution: Duplicate
Priority: Low
Fix Version/s: None
Affects Version/s: 2.5.7, 2.6.0, 2.10.1
Component/s: None
Labels:

Bug Fix Policy:
View Atlassian Server bug fix policy

The thumbnail macro renders transparent backgrounds as black, for GIF images.

PNGs are fine, and JPG doesn't support transparency anyway, so GIF is the only affected format.
A quick-and-dirty interim workaround would be to change the default to a white background, as that would reduce the impact of the issue.

causes

CONFSERVER-20025 Image background color changes from black to white when changing size for transparent images

Closed

is duplicated by

CONFSERVER-14286 Image thumbnail does not preserve PNG image transparency

Closed

CONFSERVER-12424 Gallery macro displays the wrong thumbnail when two attachments share the same filename but different file types.

Closed

is related to

CONFSERVER-13532 GIF/PNG transparency lost in Avatar resizing, makes my head look funny

Closed

CONFSERVER-9988 Prevent images without background from turning to a black background while using the gallery macro

Closed

is superseded by

CONFSERVER-21480 Fix the Thumbnail rendering that fails for transparent images (PNG/GIF) and for certain images with embedded color profiles (CMMException)

Closed

relates to

CONFSERVER-9977 Thumbnails for interlaced gifs are broken

Closed

(1 is superseded by, 1 relates to)

Assignee:: Unassigned

Reporter:: James Fleming (Inactive)

Votes:: 29 Vote for this issue

Watchers:: 23 Start watching this issue

Created:: 08/Nov/2007 12:32 AM

Updated:: 11/Oct/2018 8:55 AM

Resolved:: 07/Jan/2011 2:16 AM

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