Sandbox::https://github.com/DioxusLabs/blitz/pull/1540

nicoburns · 2026-11-12T17:39:56Z

Summary

Points Blitz at a Stylo branch (DioxusLabs/stylo enable-svg-properties-servo) that makes the SVG properties Stylo still gated to Gecko available to Servo builds behind a new layout.css.svg-properties.enabled pref, and turns that pref on in init_stylo_prefs. The properties are stop-color, stop-opacity, paint-order, marker-start/-mid/-end and the marker shorthand, clip-rule, text-anchor, vector-effect, transform-box, flood-color, flood-opacity, lighting-color, color-interpolation, color-interpolation-filters, shape-rendering and -moz-context-properties. This is milestone 0 of native SVG rendering: these properties now parse and cascade, so SVG paint code can read them from computed styles instead of from attributes.

The Stylo change removes engine = "gecko" from those properties, adds servo_pref = "layout.css.svg-properties.enabled" (default false), and removes the cfg(gecko) on the marker shorthand's parse/serialize code. It's meant to go upstream to servo/stylo. The [patch.crates-io] block pins that commit, like #1098, and should be removed once the change is in a Stylo release.

Nothing in Blitz reads these properties yet, so rendering should be unchanged. Any WPT diff should come from parsing/computed-value tests for these properties.

Link to Devin session: https://dioxus.staging.devinenterprise.com/sessions/4ffac007d4984409a3915d7477fb3d74
Link to Bot: https://dioxus.staging.devinenterprise.com/org/dioxus-engineering/bots/3904245e951a4a7fa4631b37b308d89b
Open in Devin Desktop: https://dioxus.staging.devinenterprise.com/desktop/session/4ffac007d4984409a3915d7477fb3d74?variant=devin-insiders

Painting opened this PR for Nico

Implemented in Un-gate gecko-only SVG properties in stylo · Review with Devin

WPT results

Subtests: 369 newly passing, 0 newly failing (net +369).

Subtest changes by area (22 areas)

+ css               | +162 (+162 / -0) | 59.69% ->  59.77% ( +0.08%) | 119623 -> 119785 / 200416
+   css-animations  |   +3 (  +3 / -0) | 56.14% ->  56.34% ( +0.20%) |    832 ->    835 /   1482
+   css-cascade     |  +16 ( +16 / -0) | 69.24% ->  70.64% ( +1.40%) |    790 ->    806 /   1141
+   css-masking     |  +41 ( +41 / -0) | 54.35% ->  54.95% ( +0.59%) |   3752 ->   3793 /   6903
+     clip-rule     |  +35 ( +35 / -0) |  0.00% ->  79.55% (+79.55%) |      0 ->     35 /     44
+     parsing       |   +4 (  +4 / -0) | 90.59% ->  91.42% ( +0.84%) |    433 ->    437 /    478
+   css-transforms  |  +11 ( +11 / -0) | 65.71% ->  65.89% ( +0.17%) |   4165 ->   4176 /   6338
+     parsing       |   +6 (  +6 / -0) | 93.11% ->  94.64% ( +1.53%) |    365 ->    371 /    392
+     transform-box |   +3 (  +3 / -0) |  0.00% ->   8.82% ( +8.82%) |      0 ->      3 /     34
+   css-variables   |   +4 (  +4 / -0) | 87.10% ->  87.63% ( +0.54%) |    648 ->    652 /    744
+   filter-effects  |  +87 ( +87 / -0) | 53.30% ->  55.90% ( +2.60%) |   1785 ->   1872 /   3349
+     animation     |  +35 ( +35 / -0) | 62.74% ->  64.41% ( +1.67%) |   1317 ->   1352 /   2099
+     parsing       |  +44 ( +44 / -0) | 74.63% ->  87.61% (+12.98%) |    253 ->    297 /    339
+ svg               | +207 (+207 / -0) | 37.90% ->  39.20% ( +1.30%) |   6036 ->   6243 /  15926
+   painting        | +146 (+146 / -0) | 53.77% ->  71.82% (+18.05%) |    435 ->    581 /    809
+     parsing       |  +70 ( +70 / -0) | 68.12% ->  91.61% (+23.49%) |    203 ->    273 /    298
+     scripted      |  +29 ( +29 / -0) |  2.08% ->  62.50% (+60.42%) |      1 ->     30 /     48
+   pservers        |  +36 ( +36 / -0) | 29.17% ->  66.67% (+37.50%) |     28 ->     64 /     96
+     parsing       |  +32 ( +32 / -0) | 27.27% -> 100.00% (+72.73%) |     12 ->     44 /     44
+   styling         |  +17 ( +17 / -0) | 29.26% ->  32.56% ( +3.29%) |    151 ->    168 /    516
+   text            |   +8 (  +8 / -0) | 50.18% ->  53.02% ( +2.85%) |    141 ->    149 /    281
+     parsing       |   +6 (  +6 / -0) | 69.86% ->  78.08% ( +8.22%) |     51 ->     57 /     73

Full diff (50 changed tests)

+ FAIL => PASS      [3/3]   +3  css/css-animations/svg-color-visited-currentcolor.html
+ PASS => PASS  [289/289]  +16  css/css-cascade/all-prop-revert-layer.html
+ FAIL => FAIL    [35/42]  +35  css/css-masking/clip-rule/clip-rule-no-interpolation.html
+ FAIL => FAIL    [23/36]   +2  css/css-masking/inheritance.sub.html
+ FAIL => PASS      [2/2]   +2  css/css-masking/parsing/clip-rule-computed.html
+ FAIL => PASS      [2/2]   +2  css/css-masking/parsing/clip-rule-valid.html
+ FAIL => PASS    [20/20]   +2  css/css-transforms/inheritance.html
+ FAIL => FAIL      [3/5]   +3  css/css-transforms/parsing/transform-box-computed.html
+ FAIL => FAIL      [3/5]   +3  css/css-transforms/parsing/transform-box-valid.html
+ FAIL => PASS      [1/1]   +1  css/css-transforms/transform-box/cssbox-border-box.html
+ FAIL => PASS      [1/1]   +1  css/css-transforms/transform-box/cssbox-initial.html
+ FAIL => PASS      [1/1]   +1  css/css-transforms/transform-box/cssbox-view-box.html
+ FAIL => FAIL    [30/48]   +4  css/css-variables/variable-presentation-attribute.html
+ FAIL => FAIL    [35/42]  +35  css/filter-effects/animation/color-interpolation-filters-no-interpolation.html
+ FAIL => PASS    [12/12]   +8  css/filter-effects/inheritance.html
+ FAIL => PASS      [3/3]   +3  css/filter-effects/parsing/color-interpolation-filters-computed.html
+ FAIL => PASS      [4/4]   +4  css/filter-effects/parsing/color-interpolation-filters-parsing-valid.html
+ FAIL => PASS      [8/8]   +8  css/filter-effects/parsing/flood-color-computed.html
+ FAIL => PASS      [8/8]   +8  css/filter-effects/parsing/flood-color-valid.html
+ FAIL => PASS      [8/8]   +8  css/filter-effects/parsing/flood-opacity-computed.svg
+ FAIL => PASS      [7/7]   +7  css/filter-effects/parsing/flood-opacity-valid.svg
+ FAIL => PASS      [1/1]   +1  css/filter-effects/parsing/lighting-color-computed.html
+ FAIL => PASS      [5/5]   +5  css/filter-effects/parsing/lighting-color-parsing-valid.html
+ FAIL => FAIL    [35/42]  +35  svg/painting/color-interpolation-animation.html
+ FAIL => FAIL    [37/38]  +12  svg/painting/inheritance.svg
+ FAIL => PASS      [3/3]   +3  svg/painting/parsing/color-interpolation-computed.svg
+ FAIL => PASS      [3/3]   +3  svg/painting/parsing/color-interpolation-valid.svg
+ FAIL => FAIL      [4/5]   +2  svg/painting/parsing/marker-computed.svg
+ FAIL => FAIL      [2/3]   +2  svg/painting/parsing/marker-end-computed.svg
+ FAIL => PASS      [2/2]   +2  svg/painting/parsing/marker-end-valid.svg
+ FAIL => FAIL      [2/3]   +2  svg/painting/parsing/marker-mid-computed.svg
+ FAIL => PASS      [2/2]   +2  svg/painting/parsing/marker-mid-valid.svg
+ FAIL => PASS      [8/8]   +8  svg/painting/parsing/marker-shorthand.svg
+ FAIL => FAIL      [2/3]   +2  svg/painting/parsing/marker-start-computed.svg
+ FAIL => PASS      [2/2]   +2  svg/painting/parsing/marker-start-valid.svg
+ FAIL => PASS      [2/2]   +2  svg/painting/parsing/marker-valid.svg
+ FAIL => PASS    [16/16]  +16  svg/painting/parsing/paint-order-computed.svg
+ FAIL => PASS    [16/16]  +16  svg/painting/parsing/paint-order-valid.svg
+ FAIL => PASS      [4/4]   +4  svg/painting/parsing/shape-rendering-computed.svg
+ FAIL => PASS      [4/4]   +4  svg/painting/parsing/shape-rendering-valid.svg
+ FAIL => FAIL    [29/44]  +29  svg/painting/scripted/paint-order-computed-value-01.svg
+ FAIL => PASS      [4/4]   +4  svg/pservers/inheritance.svg
+ FAIL => PASS    [10/10]  +10  svg/pservers/parsing/stop-color-computed.svg
+ FAIL => PASS    [10/10]  +10  svg/pservers/parsing/stop-color-valid.svg
+ FAIL => PASS      [6/6]   +6  svg/pservers/parsing/stop-opacity-computed.svg
+ FAIL => PASS      [6/6]   +6  svg/pservers/parsing/stop-opacity-valid.svg
+ FAIL => FAIL    [79/82]  +17  svg/styling/required-properties.svg
+ FAIL => FAIL     [4/10]   +2  svg/text/inheritance.svg
+ FAIL => PASS      [3/3]   +3  svg/text/parsing/text-anchor-computed.svg
+ FAIL => PASS      [3/3]   +3  svg/text/parsing/text-anchor-valid.svg

_{Generated by the WPT workflow.}

staging-devin-ai-integration · 2026-11-12T17:40:02Z

I'll fix CI failures and address comments from users with write access that start with 'Devin'.

Disable automatic comment, CI, and merge conflict monitoring

Use Stylo with the remaining SVG properties enabled

032038c

Enable layout.css.svg-properties.enabled pref

3961289

staging-devin-ai-integration Bot mentioned this pull request Nov 12, 2026

Tracking: native SVG parity with anyrender_svg #1543

Open

nicoburns mentioned this pull request Nov 12, 2026

Native SVG: linear and radial gradients #1546

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Use Stylo with the remaining SVG properties enabled - #1540

Use Stylo with the remaining SVG properties enabled#1540
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Summary

Painting opened this PR for Nico

WPT results

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