I love that new effect in Directory Opus 13 when you copy and paste a file or files to somewhere else and the destination files have a faded effect until the copying has completed.
I don't wish to change it, but I'm just curious if there are any additional settings for that.
(I've made a note to make it so searching for "ghost" will find those colors as well. It doesn't usually search the help text like at the bottom of that page, so it's not seeing the word "ghost" there, but we can override that where needed.)
It uses the colors in my screenshot. The faded effect is just from those colors being darker (or lighter, if in light mode) by default, but they can be changed to whatever you choose.