Visual fidelity matrix
Feature | macOS | Windows | Linux | Web | Android | iOS | Terminal | Static site | SSR |
|---|---|---|---|---|---|---|---|---|---|
Responsive viewport cases | yes | yes | yes | yes | yes | yes | degraded | yes | yes |
Container queries | yes | yes | yes | yes | yes | yes | degraded | partial | partial |
Length points/percent/clamp | yes | yes | yes | yes | yes | yes | partial | yes | yes |
Grid minmax/auto-fit | yes | yes | yes | yes | yes | yes | degraded | yes | yes |
Gradients and shadows | yes | yes | yes | yes | yes | yes | degraded | yes | yes |
Backdrop blur | yes | yes | yes | browser-dependent | yes | yes | no | browser-dependent | browser-dependent |
Packaged fonts | yes | yes | yes | yes | yes | yes | terminal-dependent | yes | yes |
LiveTest command server | yes | yes | yes | no | yes | yes | partial | no | no |
Selector-based LiveTest actions | yes | yes | yes | no | yes | yes | no | no | no |
PNG capture | yes | yes | yes | CDP | yes | yes | yes | CDP | CDP |
Golden image comparison | yes | yes | yes | via CDP capture | yes | yes | glyph-limited | via CDP capture | via CDP capture |
partial means the authored API is accepted but the target only implements a
subset. Terminal LiveTest supports coordinate/text input and PNG capture, but
not selector or deterministic-motion commands. Web, Static site, and SSR use
the test driver's Chrome DevTools Protocol harness for readiness and
screenshots; they do not expose the native /cmd server.
Fission
A cross-platform, GPU-accelerated user interface framework for Rust. MIT licensed.
Copyright (c) 2026 Fission
Ready to use today. Widget APIs are expected to remain stable; some runtime and shell APIs may change before 1.0.0.
Fission 0.9.2