As reported by Atom 1.13.1:
In lcov-info/styles/lcov-info.atom-text-editor.less:
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 .line-number.lcov-info-no-coverage::after, :host .line-number.lcov-info-no-coverage::after => .atom-text-editor .line-number.lcov-info-no-coverage::after,atom-text-editor .line-number.lcov-info-no-coverage::after
-
.atom-text-editor .line-number.lcov-info-has-coverage::after, :host .line-number.lcov-info-has-coverage::after => .atom-text-editor .line-number.lcov-info-has-coverage::after,atom-text-editor .line-number.lcov-info-has-coverage::after
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.