This is that changes gameplay, stats, or dialogue. It is purely a cosmetic overhaul. Think of it as a 4K remastering job, done for free by passionate fans.
Inside the User Folder, look for a folder named Load . If it doesn't exist, create it. Inside Load , create a folder named Textures (case sensitive). fire emblem radiant dawn hd texture pack
The textures need to be placed in a folder named after Radiant Dawn's internal code. Right-click Radiant Dawn in your Dolphin game list, click Properties , and look at the Info tab. The Game ID is RFE01 (for North America) or RFEP01 (for Europe/PAL). This is that changes gameplay, stats, or dialogue