let base09 = "#dc9656" # Integers, Boolean, Constants, XML Attributes, Markup Link Url
let base0a = "#f7ca88" # Classes, Markup Bold, Search Text Background
let base0b = "#a1b56c" # Strings, Inherited Class, Markup Code, Diff Inserted
let base0c = "#86c1b9" # Support, Regular Expressions, Escape Characters, Markup Quotes
let base0d = "#7cafc2" # Functions, Methods, Attribute IDs, Headings
let base0e = "#ba8baf" # Keywords, Storage, Selector, Markup Italic, Diff Changed
let base0f = "#a16946" # Deprecated, Opening/Closing Embedded Language Tags, e.g. <?php ?>

# we're creating a theme here that uses the colors we defined above.

let base16_theme = {
    separator: $base03
    leading_trailing_space_bg: $base04
    header: $base0b
    date: $base0e
    filesize: $base0d
    row_index: $base0c
    bool: $base08
    int: $base0b
    duration: $base08
    range: $base08
    float: $base08
    string: $base04
    nothing: $base08
    binary: $base08
    cellpath: $base08
    hints: dark_gray

    # shape_garbage: { fg: $base07 bg: $base08 attr: b} # base16 white on red
    # but i like the regular white on red for parse errors
    shape_garbage: { fg: "#FFFFFF" bg: "#FF0000" attr: b}
    shape_bool: $base0d
    shape_int: { fg: $base0e attr: b}
    shape_float: { fg: $base0e attr: b}
    shape_range: { fg: $base0a attr: b}
    shape_internalcall: { fg: $base0c attr: b}
    shape_external: $base0c
    shape_externalarg: { fg: $base0b attr: b}
    shape_literal: $base0d
    shape_operator: $base0a
    shape_signature: { fg: $base0b attr: b}
    shape_string: $base0b
    shape_filepath: $base0d
    shape_globpattern: { fg: $base0d attr: b}
    shape_variable: $base0e
    shape_flag: { fg: $base0d attr: b}
    shape_custom: {attr: b}
}

# now let's apply our regular config settings but also apply the "color_config:" theme that we specified above.

let config = {
  filesize_metric: true
  table_mode: rounded # basic, compact, compact_double, light, thin, with_love, rounded, reinforced, heavy, none, other
  use_ls_colors: true
  color_config: $base16_theme # <-- this is the theme
  use_grid_icons: true
  footer_mode: always #always, never, number_of_rows, auto
  animate_prompt: false
  float_precision: 2
  use_ansi_coloring: true
  filesize_format: "b" # b, kb, kib, mb, mib, gb, gib, tb, tib, pb, pib, eb, eib, auto
  edit_mode: emacs # vi
  max_history_size: 10000
  log_level: error
}
```

if you want to go full-tilt on theming, you'll want to theme all the items I mentioned at the very beginning, including LS_COLORS, and the prompt. Good luck!

### Working on Light Background Terminal

Nushell's [standard library](/book/standard_library.md) contains a `config` module with default light and dark themes.
If you are working on a light background terminal, you can apply the light theme easily.

```nu
# in $nu.config-path
use config light-theme   # add this line to load the theme into scope

$env.config = {
  # ...
  color_config: (light_theme)   # if you want a light theme, replace `$dark_theme` to `$light_theme`
  # ...
}
```

You can also load the dark theme.

```nu
# in $nu.config-path
use config dark-theme

$env.config = {
  # ...
  color_config: (dark_theme)
  # ...
}
```

## Accessibility

It's often desired to have the minimum amount of decorations when using a screen reader. In those cases, it's possible to disable borders and other decorations for both table and errors with the following options:

```nu
# in $nu.config-path
$env.config = {
  ...
  table: {
   ...
    mode: "none"
   ...
  }
  error_style: "plain"
  ...
}
```

## Line Editor Menus (completion, history, help…)

Reedline (Nu’s line editor) style is not using the `color_config` key.
Instead, each menu has its own style to be configured separately.
See the [section dedicated to Reedline’s menus configuration](line_editor.md#menus) to learn more on this.