Function sizeTrailingButton

pj_app/src/ui/Scene3DConfigPanel.cpp:72–78

Uniform sizing for the inline eye/add/trash buttons so the trailing column is pixel-aligned regardless of the platform style's default tool-button metrics.

// Uniform sizing for the inline eye/add/trash buttons so the trailing column is
// pixel-aligned regardless of the platform style's default tool-button metrics.
void sizeTrailingButton(QToolButton* button) {
  button->setIconSize(QSize(kTrailingIconPx, kTrailingIconPx));
  // Fixed HEIGHT too (== the input height), else the tool button's natural
  // height (~24-26px) inflates its grid row above the 20px inputs and loosens
  // the row spacing.
  button->setFixedSize(kTrailingSlotWidth, PJ::Style::kInputHeight);
}

// Add one [label | field | trailing] row to a 3-column scene-control grid.
// Using a real grid column (not an in-cell spacer) keeps every field's right