phee

Not to diminish your study, but a simple "blue light circadian sleep" search in google scholar suggests a pretty mature understanding of the phenomenon, both at biochemical and phisiological level. My little study shows that after covering with black electrical tape each and every blue and white status led around the house everyone involved sleeps better.

You sure it's just how they call it? IANAL but I believe they would also have to remove "ubuntu" from any user noticeable string.

This makes it sound easier than it really is. It's not just recompilation, it's patching everything to remove the trademark. Then you have tens (hundreds?) of custom packages to build and most of all to test and maintain.