Patch explore 4 (#7517)

ref #7339 - This PR updates explore to take some of the colors from
nushell, namely the line colors and the ls_colors.

note: Not sure why this regression appeared maybe it's a feature or it's
no longer supposed to be supported?

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>

crates/nu-color-config/src/color_config.rs

@@ -1,4 +1,7 @@
-use crate::nu_style::{color_from_hex, lookup_style};
+use crate::{
+    nu_style::{color_from_hex, lookup_style},
+    parse_nustyle, NuStyle,
+};
 use nu_ansi_term::Style;
 use nu_protocol::Value;
 use std::collections::HashMap;
@@ -9,6 +12,8 @@ pub fn lookup_ansi_color_style(s: &str) -> Style {
             .ok()
             .and_then(|c| c.map(|c| c.normal()))
             .unwrap_or_default()
+    } else if s.starts_with('{') {
+        color_string_to_nustyle(s.to_string())
     } else {
         lookup_style(s)
     }
@@ -36,3 +41,17 @@ pub fn get_color_map(colors: &HashMap<String, Value>) -> HashMap<String, Style>
 
     hm
 }
+
+fn color_string_to_nustyle(color_string: String) -> Style {
+    // eprintln!("color_string: {}", &color_string);
+    if color_string.is_empty() {
+        return Style::default();
+    }
+
+    let nu_style = match nu_json::from_str::<NuStyle>(&color_string) {
+        Ok(s) => s,
+        Err(_) => return Style::default(),
+    };
+
+    parse_nustyle(nu_style)
+}

crates/nu-color-config/src/nu_style.rs

@@ -106,6 +106,7 @@ pub fn color_record_to_nustyle(value: &Value) -> Style {
             }
         }
     }
+
     parse_nustyle(NuStyle { fg, bg, attr })
 }