Comment # 1 on bug 1194705 from Matej Cepl

Also,

stitny:~# locate mapping.db
/var/lib/colord/mapping.db
stitny:~# ls -dlZ /var/lib/colord/
drwxr-xr-x. 1 colord colord system_u:object_r:colord_var_lib_t:s0 58 Jan  7
22:07 /var/lib/colord/
stitny:~# ls -lZ /var/lib/colord/
total 44
drwxr-xr-x. 1 colord colord system_u:object_r:colord_var_lib_t:s0     0 Aug 11 
2020 .cache
drwxr-xr-x. 1 colord colord system_u:object_r:colord_var_lib_t:s0     0 Aug 11 
2020 icc
-rwxr-xr-x. 1 colord colord system_u:object_r:colord_var_lib_t:s0 16384 Aug 11 
2020 mapping.db
-rwxr-xr-x. 1 colord colord system_u:object_r:colord_var_lib_t:s0 28672 Aug 11 
2020 storage.db
stitny:~#