forked from 1b-agent/opencadstudio-upstream
iced_test renders headless through wgpu by default. Several test threads opening GPU devices at once crashed the driver: about every other parallel `cargo test --lib` run died with SIGSEGV, always with the color picker, ribbon, overlay and dock UI tests running together. With ICED_TEST_BACKEND=tiny-skia the suite passes run after run. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>