Just Black - Midnight Monochrome

Just Black is based on Google's "Just Black" theme for Chrome. Just Black is satisfyingly simple & clean.
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manifest.json
{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Just Black",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(45, 45, 45)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(71, 71, 71)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(60, 60, 60, 0)",
      "popup": "rgb(63, 64, 66)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(61, 61, 61)",
      "button_background_hover": "rgb(61, 61, 61)",
      "icons": "rgb(224, 224, 224)",
      "ntp_background": "rgb(0, 0, 0)",
      "popup_border": "rgb(52, 54, 55)",
      "sidebar_highlight": "rgb(55, 56, 58)",
      "sidebar": "rgb(45, 45, 45)",
      "tab_selected": "rgb(45, 45, 45)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(86, 86, 86)",
      "toolbar_field_border_focus": "rgb(66, 132, 243)",
      "toolbar_field_focus": "rgb(32, 33, 36)",
      "toolbar_field_highlight": "rgb(83, 102, 133)",
      "tab_loading": "rgba(60, 60, 60, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{72b22cfa-61b5-4a70-845e-3e29bc5187ef}"
    }
  }
}