[racket] Unicode art

Hello,

not sure if this is a DrRacket or font question.

I'm doing drawings with the unicode box drawing characters, like this:

> (q '(31 13) #t 'L)
()

╶┬─┬───┬─────┬─┐
╷│╷└──┐╵┌──╴╷╵╷│
│╵├┬─┐└┬┘┌──┼─┘│
├┬┘╵╷└┐│╶┴┬╴│┌─┤
│╵┌─┴┐╵│╶┐│╶┤│╷│
│╶┘┌╴└─┴─┘│╷╵╵│╵
└──┴──────┴┴──┴╴
> (q '(31 13) #t 'H)
()

╺━┳━━━━━━━┳━━━━┓
┏┓┗┓╺┳╸┏━╸┃┏╸┏━┫
┃┗╸┣╸┃╺┻━┓┃┃╺┛╻┃
┃┏━┛╺┻━━┓┣┛┣┳━┛┃
┃┣━┓┏━━┓┃╹╺┛┃┏┓┃
┃╹╻┗┛┏╸┗┻━━━┛┃╹╹
┗━┻━━┻━━━━━━━┻━╸
>

This text looks fine in a default DrRacket editor buffer or
interaction window, except that there's an extra blank pixel line
between rows (on windows, using default font Courier New)

Is there anything I can tweak in DrRacket to display this text better?

Thanks
P.