Deprecated selector in `atom-color-highlight/styles/atom-color-highlight.less`

In `atom-color-highlight/styles/atom-color-highlight.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 atom-color-highlight,
atom-text-editor::shadow atom-color-highlight` => `atom-text-editor atom-color-highlight,
atom-text-editor.editor atom-color-highlight`

* `atom-text-editor atom-color-highlight dot-color-marker,
atom-text-editor::shadow atom-color-highlight dot-color-marker` => `atom-text-editor atom-color-highlight dot-color-marker,
atom-text-editor.editor atom-color-highlight dot-color-marker`

* `atom-text-editor atom-color-highlight dot-color-marker.selected .selector,
atom-text-editor::shadow atom-color-highlight dot-color-marker.selected .selector` => `atom-text-editor atom-color-highlight dot-color-marker.selected .selector,
atom-text-editor.editor atom-color-highlight dot-color-marker.selected .syntax--selector`

* `atom-text-editor atom-color-highlight color-marker.selected,
atom-text-editor::shadow atom-color-highlight color-marker.selected` => `atom-text-editor atom-color-highlight color-marker.selected,
atom-text-editor.editor atom-color-highlight color-marker.selected`

* `atom-text-editor atom-color-highlight .region,
atom-text-editor::shadow atom-color-highlight .region` => `atom-text-editor atom-color-highlight .region,
atom-text-editor.editor atom-color-highlight .region`

* `atom-text-editor atom-color-highlight dot-color-marker:before,
atom-text-editor::shadow atom-color-highlight dot-color-marker:before,
atom-text-editor atom-color-highlight .region:before,
atom-text-editor::shadow atom-color-highlight .region:before` => `atom-text-editor atom-color-highlight dot-color-marker:before,
atom-text-editor.editor atom-color-highlight dot-color-marker:before,
atom-text-editor atom-color-highlight .region:before,
atom-text-editor.editor atom-color-highlight .region:before`

* `atom-text-editor atom-color-highlight dot-color-marker:after,
atom-text-editor::shadow atom-color-highlight dot-color-marker:after,
atom-text-editor atom-color-highlight .region:after,
atom-text-editor::shadow atom-color-highlight .region:after` => `atom-text-editor atom-color-highlight dot-color-marker:after,
atom-text-editor.editor atom-color-highlight dot-color-marker:after,
atom-text-editor atom-color-highlight .region:after,
atom-text-editor.editor atom-color-highlight .region: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.

The file to edit is `styles/atom-color-highlight.less`. The issue lists the exact selectors that need updating: replace `::shadow` with `.editor` and ensure syntax selectors are prefixed with `syntax--`. After making the changes, verify the styles still work in Atom by reloading the package or checking the developer tools.

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