[codeskine]

Replaces the tabbed Rugiada window with one page. Frequency, the plant with Feedback at its heart, and Body share the middle band; one row below holds FILTER, REVERB, PONG and ECHO; a SETUP panel holds Strings, Output and MIDI. The engine does not change, and renders match the reference checksums.

Why

The tabs hid most of the instrument while it played, the plant was decorative more than informative, and each feature added a tab. Drosera is played live first, so everything touched while playing is now on screen at once. Design: docs/superpowers/specs/2026-11-03-interface-redesign-design.md, which replaces the Rugiada spec. Mockup: docs/design/drosera-redesign-mockup.html. Plan: docs/superpowers/plans/2026-11-03-interface-redesign.md.

Interface

• Symmetric, with no boxes or signal lines. Red marks the controls inside the feedback loop, amber those after it.
• The plant is a sundew: each tentacle is a band, lowest at the top and clockwise, short and curled at rest, unfurling as its band sounds. Levels show from −54 dBFS. Under POLY the strings' drops get a ring.
• An arc over Highpass and Lowpass draws the band that survives in the loop; one over Tone draws the echo's band-pass. A dot beside Echo Time blinks at the real time between repeats, two dots in turn with PONG.
• PONG's four knobs are always shown, dimmed and usable in CLASSIC.
• Readouts say what sounds: an interval the note range holds back reads as played, tagged LIMIT, and Frequency names the chord under POLY.
• The header has a PRESET field with a menu and a SETUP field.
• The window scales from 75 % to 150 % with its proportions. A host that forces another aspect gets the design fitted and centred. The scale is saved in place of the open tab; older projects open at 100 %.
• Inter and Cormorant Garamond are embedded, under the SIL Open Font License (assets/fonts/, THIRD_PARTY_LICENSES.md).

Parameters and state

IDs, names and order do not change. uiTab is no longer saved; a saved one is ignored. uiScale is new, an atomic like uiTab was.

Testing

• check_reference.sh passes with no new checksums. render_test, voice_allocator_test and plugin_host_test with the unchanged state-baseline.bin pass.
• ui_test replaces the tab tests with one-page tests, and adds the arcs, the pulse, the readouts, the header, the setup panel, scaling (persisted, damaged state, proportions, a host-forced wider size, off-thread restore), released voices under MIDI Gate, the plant's band order, how far a sounding tentacle stands out, a played note against the rest, and loud tentacles staying inside.
• A whole-branch review found no critical issues; its important findings are fixed with tests.
• A scripted probe drove the real processor and editor via MIDI at 60 fps: the light tracks pitch with a correlation of 1.00 over three octaves, and a plant repaint costs about 5.7 ms at 2× in JUCE's software renderer.
• By hand, still to do: the mouse and preset menu in a DAW as AU and VST3, GUI CPU below 5 % of a core at 60 Hz, and the plant judged by eye with real sound.

🤖 Generated with Claude Code