Interval node = iterator.next();
Integer style = styleMap.get(node);
if (style != null) {
NodeStyle nodeStyle = TikzConstants.CELL_STYLES[style];
for (int i = node.left(); i <= node.right(); i++) {
IntSequence subSequence = sequence.subSequence(suffixTable[i], suffixTable[i] + node.lcp());
for (int j = 0; j < subSequence.size(); j++) {
if (!usedCells[i][j]) {
usedCells[i][j] = true;
drawing.drawCell(i, j, symbolTable.toToken(subSequence.get(j)).toString(), nodeStyle);
}