Disclosure: This draft was generated with AI and checked against the cited primary sources, with a separate AI editorial review. It was prepared for the FrameSprite team, which has a commercial interest in FrameSprite. Proposed examples are not executed tests unless explicitly identified as recorded fixture results.
A self-contained SVG can still use a paint feature that its consumer does not support. If an icon's mesh shading disappears outside Inkscape, isolate that feature before relinking images or converting fonts. Choose a reviewed raster fallback or replace the treatment with features supported by the actual consumer.
Key Takeaways
- Editor capability and target-renderer capability are separate checks.
- A simpler SVG comparison can isolate mesh shading from path geometry.
- Raster fallback needs explicit dimensions and its own visual acceptance.
Confirm that the affected paint is a mesh
Select the icon's shaded object and inspect its fill. The Mesh Gradient guide describes the mesh's color nodes and shape controls. Those differ from an ordinary two-ended linear gradient.
Save the native source, then create a diagnostic copy with a flat fill or simple linear gradient. If the geometry appears in the consumer with that treatment, the comparison narrows the problem to paint support or interpretation. If the object remains missing, investigate paths, clipping, resources and import errors instead.
Verify support in the actual application
The SVG paint-server specification documents standardized gradient and pattern mechanisms. It does not establish that a particular game library supports every feature an editor can save. Consult that library's supported-feature documentation and reproduce the issue with a small copy of your icon.
Record the consumer and version. Do not publish a blanket claim that every browser or engine behaves alike, or assume that changing the filename to “Plain SVG” automatically rasterizes unsupported shading. A source-format conversion and a paint-feature substitution are different operations.
| Result in consumer | Next decision |
|---|---|
| Flat fill works; mesh treatment fails | Verify feature support and choose fallback |
| Both versions fail | Investigate geometry or broader import failure |
| Raster looks correct | Confirm its size and intended scaling behavior |
Choose a fallback that preserves the delivery goal
For fixed-size inventory art, use Inkscape's PNG export workflow and set the intended pixel dimensions. Preserve transparency and review the exported file independently. For a UI requiring a small set of scalable colors, a simpler vector gradient or several filled shapes may better fit the consumer's capabilities.
An unexecuted example: a potion icon uses a mesh to create colored glass reflections. The game displays the bottle outline but omits the reflections. A flat-fill diagnostic confirms that the outline is intact. The delivery decision is then whether to preserve the painted reflections in PNG or redesign the highlight using supported vector features. Re-tracing the bottle is not a justified first repair.
Do not rasterize only an arbitrary preview and treat it as a resolution-independent replacement. Define the required display sizes and inspect each relevant export. A raster fallback can look excellent at one size and soft at another.
Keep the editable and compatible versions distinct
Retain the native mesh master and label the runtime export clearly. Record the approved renderer and any feature substitutions. The acceptance criterion is the intended icon in the intended consumer, not merely a valid XML file.
For adjacent checks, see external SVG dependencies, gradient IDs in inline SVG and PNG versus WebP delivery. No target renderer or compatibility matrix was executed for this workflow.
Written by the FrameSprite Workflow Team. Send a correction.
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