`$env.LS_COLORS = "di=1;34:*.nu=3;33;46"`: Bold directories, italic yellow foreground cyan background `*.nu` files

`$env.LS_COLORS = "di=48;2;200;0;0;5"`: Red background blinking directories

### vivid Themes

For example, you can use the third-party tool [vivid](https://github.com/sharkdp/vivid), which runs on multiple platforms, has [many themes defined](https://github.com/sharkdp/vivid/tree/master/themes), and generates a `LS_COLORS` configuration from it.

After downloading and extracting the binary, you can use it with:

```nu
$env.LS_COLORS = (vivid generate molokai)
```

or with an alternative theme:

```nu
$env.LS_COLORS = (vivid generate ayu)
```

You can put this command into your [Nushell configuration](/book/configuration.md) for it to become the default coloring.

## Theming

Theming combines all the coloring above. Here's a quick example of one we put together quickly to demonstrate the ability to theme. This is a spin on the `base16` themes that we see so widespread on the web.

The key to making theming work is to make sure you specify all themes and colors you're going to use in the `config.nu` file _before_ you declare the `let config = ` line.

```nu
# let's define some colors

let base00 = "#181818" # Default Background
let base01 = "#282828" # Lighter Background (Used for status bars, line number and folding marks)
let base02 = "#383838" # Selection Background
let base03 = "#585858" # Comments, Invisibles, Line Highlighting
let base04 = "#b8b8b8" # Dark Foreground (Used for status bars)
let base05 = "#d8d8d8" # Default Foreground, Caret, Delimiters, Operators
let base06 = "#e8e8e8" # Light Foreground (Not often used)
let base07 = "#f8f8f8" # Light Background (Not often used)
let base08 = "#ab4642" # Variables, XML Tags, Markup Link Text, Markup Lists, Diff Deleted
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