Evaluate Twinkleplop for local UI JSON highlighting
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@MathurAditya724 is already working on this.
Since Sep 24, 2026.
Assessment
This issue has not been assessed yet.
Description
The local JSON viewer is a narrowly scoped candidate for evaluating Twinkleplop. Independent warm Node measurements on a 10.1 kB JSON sample measured HTML generation at approximately 0.39 ms with Twinkleplop versus 10.58 ms with Shiki's JS engine; this is not an end-to-end UI measurement.
- JsonView currently uses Shiki's JS engine, JSON grammar and GitHub light/dark themes, highlighting after expansion. It does not load WASM.
- Isolated minified/gzipped browser entries measured 15.6 kB for Twinkleplop JSON versus 58.3 kB for the current Shiki engine/grammar/two-theme configuration. Twinkleplop's figure excludes theme CSS; these are not production application bundle deltas.
- Compatibility concerns include light/dark styling, malformed-input fallback, escaping, copy behavior and CSS/tests tied to
.shiki. The timing comparison used one Shiki theme rather than the component's dual-theme configuration. - Evaluation is limited to the local UI; terminal rendering and SQL formatting are separate concerns.
Measurements used Twinkleplop language package 0.1.4/core 0.2.1, Shiki 3.23.0, Node 22.22.2 and esbuild 0.25.0. Upstream benchmark context.
via byk.
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