How do I invert the black and white on masks?

[nyss]

My photoshop as-is right now, has the mask's white for areas that are shown, and black for areas that are hidden.

I would like it to change so that white is for areas that are hidden and black for areas that are shown.

I'm asking this because with the photoshop that I use at work, I can use the eraser tool to hide areas with the mask, while at home my brush tool is the one that does that, and is very counter intuitive

[Norman Sanders]

Click on the mask to choose it.

Image > Adjuustments > Invert

[nyss]

This is not what I asked, that simply invert's what's hidden and what's shown, I want to permanently change what the white color does and what the black color does.

I want to be able to hide areas with the erase tool instead of the brush tool

[ScooterD76 · Accepted solution]

If you swap the FG and BG colors (X) does the eraser now do what you want it to?

[nyss]

That was it... gosh, something so simple and made me go headbutting my wall for weeks... Thank you so much!