Overleaf/services/web/frontend/js/features/source-editor/themes/cm6/twilight.json

{
  "theme": {
    ".cm-gutters": {
      "backgroundColor": "transparent",
      "borderRightColor": "transparent",
      "background": "#232323",
      "color": "#E2E2E2"
    },
    "&": {
      "backgroundColor": "#141414",
      "color": "#F8F8F8"
    },
    ".cm-cursor, .cm-dropCursor": {
      "color": "#A7A7A7"
    },
    "&.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground, .cm-selectionBackground, .cm-content ::selection, .cm-searchMatch.cm-searchMatch.cm-searchMatch-selected": {
      "background": "rgba(221, 240, 255, 0.20)"
    },
    "&.cm-focused .cm-matchingBracket, &.cm-focused .cm-nonmatchingBracket": {
      "margin": 0,
      "outline": "1px solid rgba(255, 255, 255, 0.25)"
    },
    ".cm-activeLine": {
      "background": "rgba(255, 255, 255, 0.031)"
    },
    ".cm-activeLineGutter": {
      "backgroundColor": "rgba(255, 255, 255, 0.031)"
    },
    ".cm-selectionMatch.cm-selectionMatch, .cm-searchMatch.cm-searchMatch": {
      "outline": "1px solid rgba(221, 240, 255, 0.20)",
      "margin": 0
    },
    ".cm-foldPlaceholder": {
      "backgroundColor": "#AC885B",
      "borderColor": "#F8F8F8"
    }
  },
  "highlightStyle": {
    ".tok-keyword": {
      "color": "#CDA869"
    },
    ".tok-labelName": {
      "color": "#CF6A4C"
    },
    ".tok-literal": {
      "color": "#CF6A4C"
    },
    ".tok-heading": {
      "color": "#CF6A4C"
    },
    ".tok-list": {
      "color": "#F9EE98"
    },
    ".tok-typeName": {
      "color": "#F9EE98"
    },
    ".tok-function": {
      "color": "#AC885B"
    },
    ".tok-string": {
      "color": "#8F9D6A"
    },
    ".tok-regexp": {
      "color": "#E9C062"
    },
    ".tok-comment": {
      "fontStyle": "italic",
      "color": "#5F5A60"
    },
    ".tok-attributeValue": {
      "color": "#7587A6"
    }
  },
  "dark": true
}