Only really noticed this last night although I walk past often. The palm frond seemed to glow in the artificial light, but daytime it's not so noticeable. Thought it would be interesting to see how it came out with camera flash.
It is a dying frond, so the effect will ... well, die. But it's nice they way it's holding this golden colour for so long. I do have an Adonidia that naturally has fronds that colour but it's still quite small (and kept small by catepillars chewing off the leaflets).