Wrong diff

[davidbrochart]

With f1.tcss:

#tree-view {
    display: none;
    scrollbar-gutter: stable;
    overflow: auto;
    width: 20%;
    height: 100%;
    dock: left;
}

and f2.tcss:

#tree-view {
    display: none;
    scrollbar-gutter: stable;
    overflow: auto;
    width: auto;
    height: 100%;
    dock: left;
}

I get:

Notice the red % on line 6. It works fine if files have no extension.

[willmcgugan]

Ah. So that's actually the syntax highlighting and not the diff highlights. Note it is present on both sides.

There's a fudge in textual.highlight which highlights with "scss" when the extension is "tcss". I did this because there is no dedicated treesitter grammer for "tcss", and "scss" looks close enough. Alas the percentage sign is invalid there, so the hack breaks.

A solution would be to remove the fudge and have no syntax highlighting for tcss, or I write a tree-sitter grammer. The later is better, but I don't know how to do that. 🤷‍♂️