Logos are protected trademarks of the organizer (according to Act No. 441/2003 Coll., on trademarks, as amended).
The use of logos for public purposes (printed, electronic, etc.) always requires the consent of the organizer of the logo, it is not allowed to use it in connection with events and materials that contradict Czech laws and good morals, or may damage the reputation of the organizer.
Logos are not allowed to be modified in any way (eg color or shape), except for proportional changes in size, all types of logos are interchangeable.