As far as I know, /usr/share/icons/theme_name/*x*/apps/ is a standard location and is respected by most desktop environments.
- Bug#841369: Change icon image for CQRLOG Colin Tuckley
- Bug#841369: Change icon image for CQRLOG asciiwolf
- Bug#841369: Change icon image for CQRLOG Colin Tuckley
- Bug#841369: Change icon image for CQRLOG asciiwolf