slint-ui/slint

transform-scale should make SVG images scale up smoothly as vectors, not bitmaps

Open

#10903 opened on Mar 1, 2026

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 (1 comment) (2 reactions) (0 assignees)Rust (22,596 stars) (881 forks)batch import
a:renderer-femtovga:renderer-skiaa:renderer-softwaregood first issue

Description

Feature Description

If you transform-scale an svg it starts to get blocky and you can tell it was pre-rendered as a fixed size image. However text will continue to scale up smoothly regardless of size.

Product Impact

No response

Contributor guide

Tech stack
rust
Domain
frontendperformance
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
SVG renderingSlint core architectureRust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate the SVG image rendering path in Slint's core. Look at how images are loaded and rendered, particularly in the graphics backend. Compare with text rendering to understand why text scales smoothly. The issue was reported on GitHub: https://github.com/slint ui/slint/issues/10903. Check the existing implementation for transform scale on images.