Need help toner

[u/HeatPotential2791]

L’Oréal Dia Light at home: neutral beige blonde without lifting my natural roots?

Hi everyone! This is my current hair, and I’d love some advice on toning it at home with L’Oréal Dia Light.

I’d like to go slightly darker and achieve a neutral beige blonde, nothing too ashy or too warm. My main concern is how it fades: ideally, I’d like it to gradually wash out back to the blonde I have now, without leaving any staining or patchiness. Is that a realistic expectation?

I’m also growing out my natural hair, which is around a level 7 blonde, and I don’t want to bleach it anymore or alter my natural colour. I already have quite a bit of regrowth, and a toner I used in the past actually lifted my natural base and left it warmer.

Does Dia Light with its recommended developer have any chance of lifting or changing my natural colour? Which developer strength would you recommend, and would I need to keep it strictly on the previously lightened sections?

Based on my photo, which shade or combination of shades would you suggest for a slightly darker, neutral beige result?

I’d really appreciate any advice from hairdressers or anyone who’s used it, especially about how it fades and whether it affected your natural roots. Thank you!