[Therion] Missing fonts when compiling a map

[Bill Gee]

Hello everyone -

A week ago I upgraded to Fedora 26.  Today is the first chance I have had to 
run Therion.  When compiling a map, it produces two lines about missing fonts. 
See the messages below.   The compile otherwise runs to completion and the map 
renders correctly in Okular.

I have Googled on these font names, but nothing turns up.  Where should I look 
to see if they are installed?  Where do they come from?  Should I be concerned 
about it??

Thanks!

-- 
Bill Gee

BOINC Statistics 


therion 5.4.1 (2017-04-18)
initialization file: /etc/therion.ini
reading ... done
checking optional fonts csr10 csti10 csbx10 csss10 csssi10 ... NOT INSTALLED
checking optional fonts cmcyr10 cmcti10 cmcbx10 cmcss10 cmcssi10 ... NOT 
INSTALLED
configuration file: thconfig
reading ... done
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