Staining is a pivotal aspect of histology that benefits greatly from customization. Various staining techniques like H&E (Hematoxylin and Eosin), immunohistochemistry, and special stains like PAS (Periodic acid-Schiff) are selected based on the specific cellular components of interest. Custom protocols can be developed to enhance staining specificity and contrast, aiding in more accurate tissue differentiation and pathology identification.