Color-color diagrams highlighting selection cuts for GC candidates in UDG 11. In the left panel, open circles represent all cataloged sources, while violet dots indicate those selected based on morphometric criteria (CS_W & FWHM_W). In the right panel, red dots correspond to sources meeting both morphometric and optical-color selection criteria. Spectroscopically confirmed GCs are shown as green diamonds in both panels. Colored regions show the isodensity contours derived from the master catalog. The blue contour encloses 68% of the master catalog sources.