Has anyone made a text editor optimized for poetic verse? It'd automatically highlight syllable counts (and alternate the coloring of syllable-letter-groups wi

Has anyone made a text editor optimized for poetic verse? It'd automatically highlight syllable counts (and alternate the coloring of syllable-letter-groups within words). It'd indicate with bolding, underline, or other annotation stressed syllables. (Simple heuristics would get a lot right, and authors could correct the mistakes.) It could help with rhymes and near-rhymes. (I know there are already a lot of tools for this.) Would make a nice web app.