A combination of Macronix's "Recommended PCB Pad Layouts for 8-USON & 8-WSON Packages" (page 4) and "Macronix 209mil 8-SOP and 6x5mm 8-WSON Dual Layout" app notes were used in conjunction with KiCad's official DFN-S-8-1EP_6x5mm_Pitch1.27mm footprint to give a well-rounded pattern.