Escape the Orange Room: I need to get piece from makeup bag lining but can't find it. Where do I click?

I've tried clicking on all the lining - it's all grey with what looks like two slits. I can't find it despite clicking all over. It's the last piece I need and can't progress any further until I've found it. Please help.......Escape the Orange Room: I need to get piece from makeup bag lining but can't find it. Where do I click?
To get the chip in the makeup kit, you need to cut the corner with the blue dots using the sword.