Several custom conversions (the s in {title!s}) have been created
u - str.upper()
l - str.casefold()
S - str.swapcase()
t - str.title()
c - str.Capitalize()
A new syntax has been added '{title+str}' and '{title-str}':
The + indicates an alternate value.
The - indicates a default value.
If the title of a comic is not set then
'{title-str}' will output 'str'
and
'{title+str} will output ''
If the title of a comic is 'hello' then
'{title+str}' will output 'str'
and
'{title-str}' will output 'hello'
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