Pilcrow question

No.

This is a matter of style/font.

The pilcrow is usually drawn similar to a lowercase q reaching from descender to ascender height; the loop can be filled or unfilled.

There is evidence that an unfilled loop was used in the original character, looking somewhat like this: ⸿.

Over time, the pilcrow evolved to become aligned and the loop was filled in standard practise:

...the symbol [loop] was filled in with dark ink and eventually looked like the modern pilcrow (¶).

However, even though a filled pilcrow is the most common form, this does not mean an unfilled pilcrow is incorrect. As I have mentioned, it's a matter of style. Take your pick!

Quotes from Wikipedia