When using pretty much any Qt that Quaternion still compiles with (Qt 5.15 and later, incl. Qt 6), QTextDocument::toHtml() no more asks for monospace font family, using the default monospace font family of the current system. This broke HtmlFilter::filterTag() that was detecting monospace among font families to put the respective text inside a <code> element. Some other way of checking for a monospace font family should be devised.
When using pretty much any Qt that Quaternion still compiles with (Qt 5.15 and later, incl. Qt 6),
QTextDocument::toHtml()no more asks formonospacefont family, using the default monospace font family of the current system. This brokeHtmlFilter::filterTag()that was detectingmonospaceamong font families to put the respective text inside a<code>element. Some other way of checking for a monospace font family should be devised.