736818 - Port |Bug 653038 - Replacement image for sync-bg.png smaller optimized PNG|

Status: RESOLVED FIXED

(SeaMonkey :: Sync UI, defect)

Description

[Jens Hatlak (:InvisibleSmiley)]

Attachment: patch [Checkin: Comment 3]

sync-bg.png (used for Tabs From Other Computers = about:sync-tabs) was introduced with Sync UI Bug 576970 and last modified through PNG opt Bug 593840. Seems the improvement done through the latter was suboptimal, since the FF guys were able to squeeze it even more in Bug 653038:

Old size FF: 26756 bytes
Old size SM: 26754 bytes
New size:    21309 bytes (~20% off)

Comment 1

[Philip Chee]

I ran the following on the sync-bg.png from Bug 593840:

optipng.exe -zc1-9 -zm1-9 -zs0-3 -f0-5  -nx -o7 sync-bg.png

And the smallest I could get was 24,629 bytes.
(pngcrush.exe -rem gAMA -rem cHRM -rem iCCP -rem sRGB did not make any difference)
I wonder if they removed more chunks than we did? So I reran with

pngcrush.exe -rem alla
optipng.exe -zc1-9 -zm1-9 -zs0-3 -f0-5  -nx -o7

And I got it down to 23,710 so I wonder what we're doing wrong.

Comment 2

[[e-mail]]

Comment on attachment 606953 [details] [diff] [review]
patch [Checkin: Comment 3]

I'm assuming here that this just copies the image.

Comment 3

[Jens Hatlak (:InvisibleSmiley)]

Comment on attachment 606953 [details] [diff] [review]
patch [Checkin: Comment 3]

http://hg.mozilla.org/comm-central/rev/1c51aa83002e