Function pickTriangle

js/main.js:1917–1936

(e)

  });

  document.addEventListener('keydown', (e) => {
    if (e.key === 'Escape') {
      if (rotateActive) toggleRotateMode(false);
      if (placeOnFaceActive) togglePlaceOnFace(false);
      if (exclusionTool) setExclusionTool(null);
      licenseOverlay.classList.add('hidden');
      imprintOverlay.classList.add('hidden');
      closeStepDialog();
      _clearShiftLinePreview();
    }
  });

  document.addEventListener('keyup', (e) => {
    if (e.key === 'Control') _clearShiftLinePreview();
  });
}

// ── Exclusion helpers ─────────────────────────────────────────────────────────

function setSelectionMode(include) {
  if (selectionMode === include) return;
  selectionMode = include;
  // Include-only is never the implicit default, so entering it always counts