Portable Network Graphics (PNG) Working Group - Activity in 2026
No matches.
Past meetings
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1 meeting.
GitHub
w3c/png
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1 issue closed.
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Progressive rendering WPT reftests for PNG w3c/png#582.
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3 issues received 18 new comments.
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Progressive rendering WPT reftests for PNG w3c/png#582 (11 comments by @ProgramMax, @svgeesus, @tnikkel)
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Consider using Zstandard and/or LZ4 instead of Deflate w3c/png#39 (5 comments by @birdie-github, @ProgramMax, @svgeesus, @vrubleg, @YexuanXiao)
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2 pull requests opened.
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Fix the broken links w3c/png#584, by @YexuanXiao.
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Update changes section, for 'hRWL' chunk w3c/png#583, by @svgeesus.
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1 pull request merged.
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Update changes section, for 'hRWL' chunk w3c/png#583.
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1 pull request received 7 new comments.
GitHub
w3c/png
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2 issues opened.
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Progressive rendering WPT reftests for PNG w3c/png#582, by @svgeesus.
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ISO/IEC Standard Year w3c/png#581, by @fintelia.
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2 issues closed.
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Latest version of SMPTE ST 2067-21 w3c/png#576.
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ISO/IEC Standard Year w3c/png#581.
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5 issues received 9 new comments.
GitHub
w3c/png
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1 issue opened.
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Reject critical chunks in APNG frame-data sequences - #903 w3c/png#579, by @svgeesus.
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1 issue received 6 new comments.
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Consider using Zstandard and/or LZ4 instead of Deflate w3c/png#39 (6 comments by @birdie-github, @fintelia, @ProgramMax, @wwinniww)
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1 pull request opened.
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Fix typos (depnd, specificlly) in tools.md w3c/png#580, by @minirang.
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1 pull request merged.
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Fix typos (depnd, specificlly) in tools.md w3c/png#580.
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2 pull requests received 3 new comments.
Past meetings
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1 meeting.
GitHub
w3c/png
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1 issue opened.
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Latest version of SMPTE ST 2067-21 w3c/png#576, by @svgeesus.
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2 issues closed.
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3 pull requests opened.
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Update SMPTE spec urls to public ones w3c/png#577, by @svgeesus.
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Link to infra definition of code point, fix #574 w3c/png#575, by @svgeesus.
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4 pull requests merged.
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Update SMPTE spec urls to public ones w3c/png#577.
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Link to infra definition of code point, fix #574 w3c/png#575.
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Add chunk for HDR Reference White level, fix #390 w3c/png#573.
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1 pull request closed.
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added dWLm chunk w3c/png#391.
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5 pull requests received 13 new comments.
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Link to infra definition of code point, fix #574 w3c/png#575 (5 comments by @annevk, @aphillips, @svgeesus)
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Add chunk for HDR Reference White level, fix #390 w3c/png#573 (4 comments by @simontWork, @svgeesus)
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Fix rare incorrect chunk ID spellings (`iTXT`, `tEXT`, `zTXT`, `gIFT`, `eXIF`) w3c/png#578 (2 comments by @generalmimon, @w3cbot)
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Past meetings
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1 meeting.
GitHub
w3c/png
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2 issues opened.
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"code points" definition in I18n glossary has gone away w3c/png#574, by @svgeesus.
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Unclear tIME restrictions w3c/png#572, by @Oondanomala.
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3 issues received 6 new comments.
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"code points" definition in I18n glossary has gone away w3c/png#574 (2 comments by @annevk, @aphillips)
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Add PNG `hRWl` (HDR Reference White Level) chunk to conform to ISO 22028-5 w3c/png#390 (2 comments by @svgeesus)
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1 pull request opened.
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Add chunk for HDR Reference White level, fix #390 w3c/png#573, by @svgeesus.
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1 pull request received 7 new comments.
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Add chunk for HDR Reference White level, fix #390 w3c/png#573 (7 comments by @chrisn, @ProgramMax, @simontWork, @svgeesus)
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GitHub
w3c/png
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3 issues closed.
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double word and small improvements w3c/png#568.
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mDCV example wrong value w3c/png#567.
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2 issues received 3 new comments.
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3 pull requests opened.
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Use correct include file, fix #566 w3c/png#571, by @svgeesus.
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Fix incorrect numbers in example 9, #567 w3c/png#570, by @svgeesus.
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Consistency improvements, fix #568 w3c/png#569, by @svgeesus.
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3 pull requests merged.
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Consistency improvements, fix #568 w3c/png#569.
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Fix incorrect numbers in example 9, #567 w3c/png#570.
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Use correct include file, fix #566 w3c/png#571.
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1 pull request received 1 new comment.
Past meetings
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1 meeting.
GitHub
w3c/png
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1 issue opened.
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double word and small improvements w3c/png#568, by @SeleskaPM.
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1 issue received 1 new comment.
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Add PNG `hRWl` (HDR Reference White Level) chunk to conform to ISO 22028-5 w3c/png#390 (1 comment by @Filoppi)
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Past meetings
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1 meeting.
GitHub
w3c/png
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2 issues opened.
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mDCV example wrong value w3c/png#567, by @sineplusx.
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Extensions doc shows pcal.c again instead of gamma-lookup.c w3c/png#566, by @amc1804.
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1 pull request opened.
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hub1 w3c/png#565, by @0tn3d636729100h-ctrl.
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1 pull request closed.
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hub1 w3c/png#565.
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1 pull request reopened.
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hub1 w3c/png#565, by @0tn3d636729100h-ctrl.
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1 pull request received 6 new comments.
GitHub
w3c/png
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1 issue opened.
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Clarify if the `iCCP` and `sRGB` chunks can co-exist w3c/png#556, by @FooIbar.
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2 issues closed.
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Still recommend redundant `gAMA`? w3c/png#151.
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Clarify if the `iCCP` and `sRGB` chunks can co-exist w3c/png#556.
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1 issue reopened.
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Still recommend redundant `gAMA`? w3c/png#151, by @ProgramMax.
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2 issues received 8 new comments.
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Clarify if the `iCCP` and `sRGB` chunks can co-exist w3c/png#556 (5 comments by @FooIbar, @ProgramMax)
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7 pull requests opened.
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png6 w3c/png#563, by @0tn3d636729100h-ctrl.
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[Extensions] Update broken links, add missing changes for 1.6.1 w3c/png#562, by @svgeesus.
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Patch 1 w3c/png#561, by @0tn3d636729100h-ctrl.
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追加 w3c/png#560, by @0tn3d636729100h-ctrl.
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0tn3d636729100h ctrl patch 2 w3c/png#559, by @0tn3d636729100h-ctrl.
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Redundant gAMA not recommended w3c/png#558, by @svgeesus.
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再来店 w3c/png#557, by @0tn3d636729100h-ctrl.
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2 pull requests merged.
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Redundant gAMA not recommended w3c/png#558.
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5 pull requests closed.
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png6 w3c/png#563.
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Patch 1 w3c/png#561.
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0tn3d636729100h ctrl patch 2 w3c/png#559.
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追加 w3c/png#560.
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再来店 w3c/png#557.
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3 pull requests received 5 new comments.
Participants
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2 participants joined.
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Christopher Cameron (Google LLC) joined.
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Fares Alhassen (Google LLC) joined.
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3 participants left.
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Christopher Cameron (Google LLC) left.
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Fares Alhassen (Google LLC) left.
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Pierre-Anthony Lemieux (MovieLabs) left.
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1 organization joined.
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Google LLC joined.
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GitHub
w3c/png
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1 issue opened.
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2 issues closed.
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Filtering description confussion w3c/png#543.
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1 issue reopened.
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2 issues received 6 new comments.
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"Latest published version" points to non-existent https://www.w3.org/TR/png-4/ w3c/png#553 (5 comments by @ProgramMax, @svgeesus)
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2 pull requests opened.
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キロキロキリ w3c/png#555, by @0tn3d636729100h-ctrl.
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Latest published version is png 3rd edition, fix #553 w3c/png#554, by @svgeesus.
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2 pull requests merged.
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1 pull request closed.
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キロキロキリ w3c/png#555.
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2 pull requests received 11 new comments.
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Filtering uses corresponding bytes. Add diagrams and fix wording. w3c/png#551 (10 comments by @ProgramMax, @svgeesus)
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