Non free images

[dawkagaming]

Hello,
I am trying to make a Debian packaging for sdrangel and lintian unhappy with two files: doc/img/lena*.xcf

Can I kindly ask for those to be replaced with something else, please?

Thank you.

[srcejon]

FYI the reason: https://www.reddit.com/r/computervision/comments/1byusil/ieee_computer_society_bans_lena_image_in_papers/