Sorry but looking at the nav.xhtml and TableofContents.html files, the spaces between the : and the rest of the header are present. If I generate a toc.ncx from the nav.xhtml, the spaces are still there.
Sadly, I can't see the header since it was replaced by Scrambled
From the presence of the koboSpan in the TableofContents.html, it looks as if this was either an ePub that was converted to kepub or an ebook downloaded from Kobo that was not properly cleaned. If you are sending this book to your Sage using the KoboTouchExtended driver, there are issues with losing spaces. I would suggest reverting to v3.7.0 from the
Releases on GitHub
nav.xhtml
Code:
<li><a href="OEBPS/Text/section-0012.html#auto_bookmark_toc_top">Vebbkjh 6: Yty Ldetzrva Ace Yjkv'd Teyq</a></li>
TableofContents.html
Code:
<p class="P_TOC_Entry_1"><a href="../Text/section-0012.html"><span xmlns="http://www.w3.org/1999/xhtml" class="koboSpan">Xagtdro 7: Rvw Lvbyonio Ojk Vdsn'c Mfgx</span></a></p>
toc.ncx
Code:
<navPoint id="navPoint13">
<navLabel>
<text>Vebbkjh 6: Yty Ldetzrva Ace Yjkv'd Teyq</text>
</navLabel>
<content src="../Text/section-0012.html#auto_bookmark_toc_top" />
</navPoint>