Weekly github digest (svgwg, svg-aam, fxtf-drafts, graphics-aam, graphics-aria)

Issues
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* w3c/svgwg (+0/-2/💬8)
  2 issues received 8 new comments:
  - #366 'color-interpolation' isn't used for alpha compositing (7 by svgeesus, KelSolaar, sobotka)
    https://github.com/w3c/svgwg/issues/366 [Needs editing] [Needs removal] [Paint Servers chapter] 
  - #478 What is the unit type after setting an SVGAngle or SVGLength's value (1 by css-meeting-bot)
    https://github.com/w3c/svgwg/issues/478 [Basic Data Types and Interfaces chapter] [Needs WG input] 

  2 issues closed:
  - Should setting an enum IDL to an invalid value throw an error? https://github.com/w3c/svgwg/issues/547 [Basic Data Types and Interfaces chapter] [Needs editing] [Needs tests] [SVG Core] 
  - CSS illegal values no longer defined https://github.com/w3c/svgwg/issues/639 [Entire spec] [Needs editing] 

* w3c/fxtf-drafts (+1/-0/💬2)
  1 issues created:
  - getComputedStyle() background-blend-mode (by ewilligers)
    https://github.com/w3c/fxtf-drafts/issues/332 [compositing-1] 

  2 issues received 2 new comments:
  - #332 getComputedStyle() background-blend-mode (1 by dbaron)
    https://github.com/w3c/fxtf-drafts/issues/332 [compositing-1] 
  - #53 [filter-effects-2] Backdrop filters should not use BackgroundImage (1 by ChumpChief)
    https://github.com/w3c/fxtf-drafts/issues/53 [filter-effects-2] 



Pull requests
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* w3c/svgwg (+1/-2/💬0)
  1 pull requests submitted:
  - Added paragraph about Tiny 1.2 being deprecated (bug #199) (by BigBadaboom)
    https://github.com/w3c/svgwg/pull/643 

  2 pull requests merged:
  - Enum-like DOM properties throw TypeErrors on setting to unknown values
    https://github.com/w3c/svgwg/pull/641 
  - No value is illegal
    https://github.com/w3c/svgwg/pull/640 


Repositories tracked by this digest:
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* https://github.com/w3c/svgwg
* https://github.com/w3c/svg-aam
* https://github.com/w3c/fxtf-drafts
* https://github.com/w3c/graphics-aam
* https://github.com/w3c/graphics-aria