Think math. It is a modulus function. It spits out 'magnitude' of its input, i.e, whatever is inside it always result positive.
Is it advisable for one who is not an expert on economic and social issues to express views on the subject of traffic law? I believe for a number of reasons that it is.
Don't judge me I know that frequently they represent almost the same softwares but is just a matter of principles.
What you are saying is 'Freemium' software. Free software in our sense is free to do whatever we want, following its license, 'Free as in Freedom.'
You can look at base16 project, they keep templates for many apps, and you can generate themes for any app you want. I used to use 'flavours' for theme management, but now I have settled with gruvbox-dark-hard
Oxytocin ? Really ? Am I seeing it right ?