Although using schematics in Minecraft requires a world editing program compatible with the feature, there are several options available to choose from, fortunately.

There are all sorts of texture packs for both Minecraft Java and Bedrock edition (Image via Sportskeeda) Minecraft has a unique pixelated texture for all blocks, mobs, and items.

You can see chunk borders in Minecraft: Java Edition using wireframes, and in Bedrock by using coordinates.