Hi,
I am the author of a program wich is licensed under the GPLv3.
There are two sets of icons I want to use for buttons in the program, one is licensed under CC by-sa 2.5, the other under CC by 2.5
1) Is it legal to use the icons as embedded ressources inside of the executable binary of the program?
2) As an alternative, is it legal to deliever them together with the program as "external" files, which then are loaded by the program at runtime?