hi everyone, require your expertise
For this question, Key is being used to refer to 'something of crucial importance'
Lets assume I am creating a business where I sell my own artwork. As a catchy business name I use Paint: Key.
What I am trying to insinuate here is that paint is key (i.e. paint is key because it is the material I use to create my artwork)
Paint: is of crucial importance or Paint: crucially important
Does this make sense grammatically or at all? I am interested to hear you advice.