1. INTRODUCTION  
2.1. Comparison Samples  
2.2. Photometric Corrections  
2.3. Sample Coverage  
3. ANALYSIS  
3.1. Color-Magnitude Space  
3.2. Mixture Models  
4. DISCUSSION  
4.1. SPOG FUV–NUV Colors  
4.2. Heterogeneity in the UV Colors of SPOGs  
5. SUMMARY