On Atom 1.30 x64 I got deprecation on that plug-in

[varosi]

Starting from Atom v1.13.0, the contents of atom-text-editor elements are no longer encapsulated within a shadow DOM boundary. This means you should stop using :host and ::shadow pseudo-selectors, and prepend all your syntax selectors with syntax--. To prevent breakage with existing style sheets, Atom will automatically upgrade the following selectors:

atom-text-editor::shadow .gutter .line-number.line-number-green => atom-text-editor.editor .gutter .line-number.line-number-green
atom-text-editor::shadow .gutter .line-number.line-number-blue => atom-text-editor.editor .gutter .line-number.line-number-blue
atom-text-editor::shadow .gutter .line-number.line-number-red => atom-text-editor.editor .gutter .line-number.line-number-red
.build .checking => .syntax--build .checking
.build h1.error => .syntax--build h1.syntax--error
.build h1.success => .syntax--build h1.success
.build h1.warning => .syntax--build h1.syntax--warning
.build ol => .syntax--build ol
.build li => .syntax--build li
.build li.error => .syntax--build li.syntax--error
Automatic translation of selectors will be removed in a few release cycles to minimize startup time. Please, make sure to upgrade the above selectors as soon as possible.