Color-Coded Emotions: A common way of encoding emotive data for the use of, say, emoji v-tags, along with geometric shapes and other such abstract symbolism. Very handy for passing along this sort of information when you don’t necessarily share body language, etc., with your interlocutors, especially since it tends not to be tied to any one species’/cultures’ interpretations of such things.
Possession Implies Mastery: Generally averted, as the very large pile of incomprehensible elder-race artifacts sitting around in museums and the vaults of companies like Probable Technologies, ICC would demonstrate. Some of them have been there for centuries, or even millennia, and are still no closer to being understood.
Played straighter with many items of Imperial technology, which tends to come with built-in diagnostic equipment and users’, maintenance and repair manuals, technical specifications, and a full schematic all stored on the device itself, readily accessible via v-tag. But then, their manufacturers know they’re selling to customers who like to tinker.
It’s not instant mastery, but it sure helps with getting there.