Vertex Groups Density working in opposite way I'm learning how to add hair with this tutorial https://www.youtube.com/watch?v=-Bo3wmQ5qLU

I've followed the path slowly and I got to the point of assigning density = my group of selected area almost the same way it is explained here

However, the result I get is the opposite of what I want.
You have clicked the inverse button , just click it again and it will go back to normal :