Originally Posted by lisalovesquilting
BlueChicken, Thanks. It could be invis-a-fil. Don't think you're too fussy. None of us are perfect, but if you're going to do it you want it to look the best it can. Lisa
Invisi-fill sounds familiar, that's probably it! :-)
It has quite a sheen to it, but I haven't had any problems with that making it more visible. It comes in quite a few colours, I pick one that matches the fabric not necessarily the colour but the darkness of the thread. So deep purple fabrics I'll use the brown or black thread, because it's darker.