Just found a workaround for having fonts included in the import.
if I have in the imported html file
Code:
<div class="hidden"><img alt="" src="Fonts/CharisSILI.ttf"/></div>
with the 'hidden' class as
Code:
.hidden {display:none;}
Then the font is included in the import and put in the Fonts folder.
You can then delete those lines from the imported file, or as they are hidden (in Sigil preview pane & calibre viewer), you could leave them.
Edit:
You
need to delete those lines, as the epub will
not validate with them in. - thanks @Jellby
You could also use inline style as:
Code:
<div style="display:none;"><img alt="" src="Fonts/CharisSILI.ttf"/></div>
Edit:
Found you could also just have
Code:
<img style="display:none;" alt="" src="Fonts/CharisSILI.ttf"/>