The technique today is called emerging corners embossing. How to can be found here.
Gracie's card uses some beautiful colors in her corners and creates a pretty card.
Oh, me. My card probably doesn't look anything like the YouTube video! Sure am glad I have a MISTI! I started with a white panel and a Technique Tuesday stamp. I stamped both corners twice with different inks. I only had to do it 3 times to try to make it a decent attempt! I used SU Costal Cabana and Pistachio Pudding inks. I also used the same cardstock colors to mat my panel. I stamped my sentiment with black Memento ink and added a diecut heart and a bit of twine. ~ Gracie