How to change COA logo in easy way

How can I change the SENAITE logo in report with a easy, some people say to change the impress code, I’m sure that will be work but unfortunately I don’t own the ability of IT and Webseit.

The user manual show to change COT logo in this way, but it can’t be found senaite.coa_logo_accredition_styles and senaite.coa_logo_styles in Senaite 2.5’s configuration registry.

Thanks a lot with your help.
Best wishes.