I'm going to have to agree with tommyr here, but it really depends where you live. I grow many Nepenthes here indoors under artificial lighting, outside all spring through early fall. Only some of the most picky species I grow a terrarium, but only because I turn my heat down too far for lowlanders in the winter here. Your Nepenthes should recover if it is just burnt and dehydrated. Keep it moist from now on and you'll be fine. Cut off any parts that are totally dead, but don't cut into stem that is still firm as new leaves can sprout from them if the tissue inside is still alive. If it's in a spot you tend to forget about it, move it someplace you will see it every day. Or if you can't water it as often as you'd like give it a potting mix that's mostly long fibered sphagnum moss. I do that for my seedlings as the pots tend to dry out quicker than I want to be watering them.

Hi, What did you end up doing? Did you use a grout recolor?

Jan this is a floor tiles and pebble area is for under freestanding tub. The grout dust probably hasn't been completely cleaned off yet and we intend to use an enhancer to darken up the stones - just would like to make the grout look at least wet (but not sure that particular grout can be darkened since it has a stain-resister and sealer in it). Similar to this inspiration photo [https://www.houzz.com/photos/carmel-mountain-kitchen-master-and-guest-bathroom-remodel-modern-bathroom-san-diego-phvw-vp~73321082[(https://www.houzz.com/photos/carmel-mountain-kitchen-master-and-guest-bathroom-remodel-modern-bathroom-san-diego-phvw-vp~73321082)

The exact sample that was chosen was Antique White. You can see on the color card that it’s a beige..and it was definitely beige on the sample grout thingy. That’s what was given to me...and this is what I got. For the record, it was a master ruler who installed these tiles (as I’m sure you can tell by the perfect tiny grout lines), he did NOT use “too much water”. It is the exact same colour and thickness everywhere.