textOverflowed property
Whether this node's paragraph ran out of room — maxLines exceeded, so
the words are ellipsised or clipped.
Read off the paragraph while it is already in hand. This is the classic localisation bug: a label that fits in the language it was designed in and does not fit in the next one. The matrix already runs the language axis, so with this the question "which strings break in German" is a query rather than a feature.
Implementation
final bool textOverflowed;