afterRootBox = after.toBox(0L, colourScheme);
labelSetup(afterEquation, colourScheme);
Offset windowWithoutLabel = afterBoxSetup(fontSize, panelRectangle);
Box beforeRootBox = beforeBoxSetup(g2D, colourScheme, before, fontSize, windowWithoutLabel);
initialTime = System.currentTimeMillis();
TreeDiff treeDiff = new TreeDiff(before, after);
transitions = treeDiff.getTransitions(beforeRootBox, afterRootBox);
}