Painting Grout in Bathroom

[kofi2003uk]

hi Everyone,
i have just refurbished my bathroom but made a bad decision to not replace the tiles (well to save a bit of money,finances not good ha) but rather change the grout from white to a darker one and keep the tiles. bad idea!. its been done but doesn't look good at all.

now am thinking of painting the grout white or keep the dark colour but i have no idea on how to do this and never done before, so i need help/advice please.

please see pictures below.

1. is painting the grout a good idea?
2. if so, how best to paint it and with which type of paint please?
3. please see pictures- i think the tiles are glazed as they shine but would i have problems with paint being sucked into the tiles?

any advice and tools etc will be much appreciated

thank you

 

[foxhole]

https://www.sealantsonline.co.uk/pr...nAu5JBeKwSiCwjU35piKJ1_0B__YACdBoCqMYQAvD_BwE

 

[kofi2003uk]

thank you foxhole. i will look into this . looks like what am looking for. many thanks