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If she has passed all testing, then you could always boost her. I expect Blue by 4th and Blue/Gold* by 5th, and will sometimes allow a Red G3 if she hasn't come from boosted/ExPerf/ExPro lines.
She looks to have come from a non boosted line, so I would expect Red by her level, and then her to produce Blue papered foals.

Some players expect Blue by G3, I expect it by G2 for my KP lines, but they are boosted.

Definitely not a rule though! I would put her in a pasture for 30 days then breed her to a high B stallion, and expect her to produce Blue/A babies.

Everyone has to kind of make their own guidelines. I find that usually the players who are the strictest (and thus expect blue 3rd gens) tend to also be the ones with a ton of breeding stock, so I think the strictness is partially because otherwise they're inundated with new intact foals lol.
I personally would reconsider 3g reds once I start getting sufficient 3g blues, but if you're not seeing a lot of them 3g reds are fine :)