Rob Kim/Getty Images Known for their innovative and authentic style, stars of the HGTV show “Fixer Upper” Chip and Joanna Gaines often focus on remodeling recently purchased homes that need plenty of grunt work, giving them a new style inside and out. The real estate and design duo hosted five seasons of the original show and returned in 2021 with the Discovery+ series “Fixer Upper: Welcome Home.” With a modern farmhouse flair habitually showcased throughout, the creative couple continues to transform drab houses into dream homes. For their bathroom remodels, depending on the space and interest of the client, the Gaines’ might expand on smaller spaces of a bathroom by removing superfluous walls. Then they…