Hi Brains Trust,
I want to spruce up our red brick pavers. I love the pattern so don't want to cover them but they get REALLY hot and hold the heat (we're in Darwin). Plus, there's some ugly glue stains from adjoining tiles

that would be nice to not see any more. I'm thinking a mortar wash could be nice to lighten the colour a bit without making it too glarey. But will that textured surface attract and trap too much mould? It needs to be pretty considerate of full sun, a lot of rain and not get slippery or mouldy.
Love to hear your thoughts, experiences or product recommendations.
Pic is of part of the red brick pavers and the adjoining tiles around the pool.