Page 17 of the PDF 1.7 spec indicates that /lime#20Green should produce Lime Green. Is this an errata? I see nothing in the spec about capitalizing the first character of a name, and the example just below (paired#28#29parenthesis) does not correct capitalization. One of those examples is incorrect, but I'm not confident about which.
No. The table entry in ISO 32000-1:2008 you refer to is erroneous. In ISO 32000-2:2017 you find the Lime Green line fixed: