I am using a Mac and it seems the problem I am experiencing is not shared by PC users.
I am trying to change the colour saturation of textures (such as bricks and roof tiles). The HSB slider seems to only affect solid colours, not the texture I am trying to edit. Infact If I select my texture and then go to the HSB sliders they are set for a completely different colour. If I select the colour wheel I can change the lightness/darkness but this converts it into a solid colour - the pattern is lost.
I can get the sort of effect I am looking for by reducing the opacity, but I don’t want to make the texture transparent, I just want to lighten it. Any suggestions?
Generally I would open the texture in an external image editor to make changes because I’d have a whole lot more control over the changes. You can do that from the Materials editor in SU.
I just tried selecting a texture from ‘colours in model’ and the same thing is happening - the HSB sliders do not show the colour of the texture I selected to edit?