[SVG2] (Re-)Add default value for optional DOMMatrix2DInit args 他

Avoid the use of `Animatable` in `ShadowAnimation` constructor
w3c/svgwg@64178bf
（和訳には織り込み済み）

Use constructor operation for ShadowAnimation
w3c/svgwg@1d04f83
（和訳には織り込み済み）

(Re-)Add default value for optional DOMMatrix2DInit args
w3c/svgwg@14bfba6

Author: triple-underscore

svg-idl-ja.html

@@ -80,8 +80,8 @@
 
 ●●options
 spec_title:SVG 2 — IDL Definitions
-spec_date:2025-09-14
-trans_update:2025-10-28
+spec_date:2026-03-12
+trans_update:2026-03-20
 source_checked:180908
 page_state_key:SVG
 original_url:https://w3c.github.io/svgwg/svg2-draft/idl.html
@@ -410,7 +410,7 @@ <h1>付録 A. IDL 定義 — IDL Definitions</h1>
   [`NewObject$] `DOMMatrix$I `createSVGMatrix$m();
   [`NewObject$] `DOMRect$I `createSVGRect$m();
   [`NewObject$] `SVGTransform$I `createSVGTransform$m();
-  [`NewObject$] `SVGTransform$I `createSVGTransformFromMatrix$m(optional `DOMMatrix2DInit$I %matrix);
+  [`NewObject$] `SVGTransform$I `createSVGTransformFromMatrix$m(optional `DOMMatrix2DInit$I %matrix = {});
 
   `Element$I? `getElementById$m(DOMString %elementId);
 
@@ -479,7 +479,6 @@ <h1>付録 A. IDL 定義 — IDL Definitions</h1>
 [`Exposed$=Window]
 interface `ShadowAnimation@I : `Animation$I {
   constructor(`Animation$I %source, (`Element$I or `CSSPseudoElement$I) %newTarget);
-
   [`SameObject$] readonly attribute `Animation$I `sourceAnimation$m;
 };
 

svg-struct-ja.html

@@ -18,8 +18,8 @@
 
 ●●options
 spec_title:SVG 2 — Document Structure
-spec_date:2025-09-14
-trans_update:2025-10-28
+spec_date:2026-03-12
+trans_update:2026-03-20
 source_checked:180924
 abbr_url:SVGstruct
 page_state_key:SVG
@@ -5282,7 +5282,7 @@ <h3 title="Interface SVGSVGElement">5.13.2. ~interface `SVGSVGElement^I0</h3>
   [`NewObject$] `DOMMatrix$I `createSVGMatrix$m();
   [`NewObject$] `DOMRect$I `createSVGRect$m();
   [`NewObject$] `SVGTransform$I `createSVGTransform$m();
-  [`NewObject$] `SVGTransform$I `createSVGTransformFromMatrix$m(optional `DOMMatrix2DInit$I %matrix);
+  [`NewObject$] `SVGTransform$I `createSVGTransformFromMatrix$m(optional `DOMMatrix2DInit$I %matrix = {});
 
   `Element$I? `getElementById$m(DOMString %elementId);
 
@@ -6319,7 +6319,7 @@ <h3 title="Interface ShadowAnimation">5.13.12. ~interface `ShadowAnimation^I0</h
 </p>
 
 <pre class="idl">
-[【！Constructor(Animation source, Animatable newTarget), 】`Exposed$=Window]
+[`Exposed$=Window]
 interface `ShadowAnimation^Ix : `Animation$I {
   constructor(`Animation$I %source, (`Element$I or `CSSPseudoElement$I) %newTarget);
   [`SameObject$] readonly attribute `Animation$I `sourceAnimation$m;