O que a opção de fonte “no_round” no Sublime Text faz?
O comportamento anterior de nunca arredondar posições está disponível através da opção de fonte no_round.
Text positioning on OS X has changed to match typical Core Text output (as used by TextEdit, Terminal, and Safari). For anti-aliased fonts, this means rounding glyph positions to pixel boundaries for small font sizes. The previous behaviour of never rounding positions is available via the no_round font option. Aliased font rendering has also been changed to use a different set of rounding rules, which should now match the terminal.
Fonte Dev Build 2169