How to update old stone entrance floor.

last month
last modified: last month

I have an old stone entrance floor from the 70s and I want to update it. I just bought this home and have a lot of updating to do! The grout is very dirty and I do not like the red and green colors. Any suggestions on what to do?? Thought about painting it but not sure what colours to use or what kind of paint and seal. Please help! Thank you!