Lee Dong Geon
001381459e
Themes imported from IntelliJ drew a lighter gutter strip and kept the built-in blue for the selected tab's border and completion matches. The converter read the classic UI's GUTTER_BACKGROUND, where the new UI paints EDITOR_GUTTER_BACKGROUND or else the editor's background; it read EditorTabs.underlineColor, where Islands borders the selected tab with underlinedBorderColor; and it didn't map CompletionPopup.matchForeground. Scheme attributes written as `<value />` (no colours, not inherited) now show as plain text instead of keeping the built-in colours. Co-authored-by: ldg030201 <100822592+ldg030201@users.noreply.github.com>
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OpenIDEA brings the IntelliJ IDEA way of working — its keymap, its tool windows, its search-everything habits — to a native app with a Rust core.
Editor, code insight, debugger, Git, terminal, database and HTTP clients, for 60+ languages. Builds for macOS, Windows and Linux.
Benchmark
Opening freqtrade (Python, ~770 files) with warm caches, median of 5 runs:
| OpenIDEA | IntelliJ IDEA 2026.2.3 | |
|---|---|---|
| Window with the project | 0.9 s | 3.1 s |
| Ready (CPU settled) | 1.1 s | 13.2 s |
| Memory (USS, all processes) | 169 MB | 2011 MB |
| CPU time until ready | 2.4 s | 47.9 s |
| Idle CPU | 4 % of a core | 7 % of a core |
| Quit | 0.3 s | 5.9 s |
A release build of OpenIDEA from main and IDEA with default settings and plugins, on
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IDEA analyses Python more deeply, so "ready" doesn't mean the same work on
both sides. Both are measured from the outside, the same way: see
perf/compare to run it on your machine and projects.
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