Apply texture to a particle under LWRP

Hi,

Before LWRP you could make a material under particles>additive and apply tint and a particle texture.

I can't find where to put my particle texture in LWRP, and tint has also disappeared.

Attempts to drag my texture to the particle system make it go a nice shade of blocky purple, which goes away if I use LWRP>Particles>Unlit, but it still takes no texture and is just square.

Help please?

A.

P.s. - topic tags seem a bit messed up. There's "particlesystem" and "particle system", "texture" and "textures".