They are a good link between this point of attraction and the rest of the interior. You have a huge variety of possibilities for this, ranging from well-established trends in 2023 to your own fantasies. In any case, you will not be able to create something revolutionary here, but you will open a new direction without problems. Inserts look very good if they are contrasting, interesting and go along with the overall composition. As for these elements, in 90% of cases you have to make them custom. Otherwise, it is only available in pre-packaged kits.
The best 2023 ideas for your fireplace
This is too highly specialized for you to have encountered this earlier. Therefore, it is better to listen to the recommendations of professionals who already know a lot about this:
Crazy DIY inserts
Epoxy resin opens up a huge number of different possibilities. You can fill in there any objects that are dear to your heart. The point is that this also requires sophisticated LED backlighting. It can be sea shells, a collection of insects, or any crystals. All this will look harmoniously in your home. Another interesting idea is to create faux bricks and tiles with different inlays. Even if it is broken glass, it will already look very original and sophisticated. You have a choice, and this is complete infinity. Painted inserts and glass are completely out of fashion, so don't try to use them. It is strange that there are many different models of this type on the American market.