ST 3.1 (build 3120) introduced a new colour scheme format, .sublime-color-scheme, deprecating .tmThemes in the process. New features, like diff markers, aren't supported by legacy .tmTheme files anymore.
ST3 includes a tool to convert tmTheme files to the new format (command palette > "Convert Color Scheme"); the new file here is modified from what was generated by the tool.
Diffs:
Changed sublimelinter.gutter-mark from lime to nord14 (Aurora green)
This was to fix colour parsing for variables by the auto-convert tool in ST3, as it can only parse colours as hex codes
Replaced hard-coded hex values with variables
The variables mostly follow the Nord colours; however, there's one colour, #616e88, that doesn't follow any of the greys; it's labelled 'lightgrey'
Added new declarations for gutter diff markers
The three new declarations are at the end of the globals block
ST 3.1 (build 3120) introduced a new colour scheme format,
.sublime-color-scheme, deprecating.tmThemes in the process. New features, like diff markers, aren't supported by legacy.tmThemefiles anymore.ST3 includes a tool to convert tmTheme files to the new format (command palette > "Convert Color Scheme"); the new file here is modified from what was generated by the tool.
Diffs: