@Jasmine GreenTea,
If Plan A in post #7 doesn't work Plan B would be to change all 4 epub @font-faces from:
Code:
@font-face {font-family: "Gentium"; ... ... }
to:
Code:
@font-face {font-family: serif; ... ...}
and change the epub css from:
Code:
.calibre {
display: block;
font-family: "Gentium";}
to
Code:
.calibre {
display: block;
font-family: serif;}
Default(Original) should show Gentium whereas choosing any Sony built-in (serif or sans-serif) should display in that font instead.