If it’s hard to remove the blade entirely, perhaps it can flicker or something like that, implying it went out or at least became unreliable such that she cowers before Kylo’s lifted blade in that one shot where her saber isn’t visible anyway. It shouldn’t be too much, as we don’t want to imply too strongly that the saber is totally shot or anything.

Oh, and that’s a genius idea to make the little lights green and purple in the end scene. (It even makes a tad more sense that purple and green would add up to a yellow hue.) Who’s up for it? lol