[roger64]

Many people feel like you because the way Sigil makes use of Tidy is just: "one size fits all". It gives you no choice. And, as a consequence, if you are put off by some particular feature (say, the creation of "sgc" styles), you are put off by the whole of Tidy.

It should not be this way, but it seems, according to PeterT, that Tidy is hard-coded within Sigil and that Sigil makes absolutely no use of the genuine -and extended- configuration options of Tidy.

So what many people dislike is NOT the real Tidy, its the use of Tidy made by Sigil which is a totally different thing. I think Tidy deserves better, and it would be about time to provide Sigil users access to its configuration options.