Visually denote ##Extra Card Detail

Now that most tags are hidden by default, it is necessary to denote ##Extra Card Detail some other way to quickly tell whether it is applied. Not having access to its tag also makes it harder to bulk apply it, as one of the previous quickest methods was copying it as tag, then bulk selecting rem, then pasting (see also Expand ways to add the ##Extra Card Detail powerup tag).

UPDATE: the powerup is now shown again, leaving this request up in case there is demand for some other visual way to show it (by analogy with other card-related things using special formatting such as arrows or bold/italics).