+- Worked around an EFI bug that affected my 32-bit Mac Mini: That system
+ seems to have a broken EFI, or possibly a buggy CPU, that causes some
+ (but not all) conversions from floating-point to integer numbers to hang
+ the computer. Such operations were performed only in rEFInd's
+ graphics-resizing code, and so would manifest only when icons or
+ background images were resized. My fix eliminates the use of
+ floating-point operations in the affected function, which eliminates the
+ crashes. There may be some degradation in the quality of resized images,
+ though, particularly on 32-bit systems. (64-bit systems use larger
+ integers, which enable greater precision in my floating-point
+ workaround.)
+