['Replace Colour' - How? (Affinity Photo)]

Hi There,

 

I've just moved over to Affinity from Photoshop.

 

There is a 'Replace Colour' function in Photoshop that I use all the time. Basically selecting a colour and then altering the sliders to change. 

 

I cannot see this function anywhere in Affinity!

 

Can anyone help please

 

Thanks

Ok so messing around a bit I added a pixel layer then painted it all black, then selected contrast negate and that seemed to work for what i was doing.  Photoshops tool for color replace wasn't working, seems adobe isn't fixing their software so I'm running a trial of this.