Function load_theme_str 

pub fn load_theme_str(
    json: &str,
    variant: ThemeVariant,
) -> Result<AppTheme, String>

Available on crate feature theme only.

Loads an AppTheme from a JSON string in opencode format.

Parses the JSON, resolves all color references, and constructs a complete AppTheme with all color categories populated.

Arguments

• json - The JSON string to parse
• variant - Which theme variant (dark/light) to use

Returns

Ok(AppTheme) if parsing and resolution succeeds, Err with a description if parsing fails.

Errors

Returns an error if:

• The JSON is malformed
• Required color keys are missing
• Color values cannot be resolved

Example

use ratatui_toolkit::services::theme::{loader, ThemeVariant};

let json = r#"{
  "defs": { "bg": "#282828", "fg": "#ebdbb2" },
  "theme": {
    "background": "bg",
    "text": "fg"
  }
}"#;

let theme = loader::load_theme_str(json, ThemeVariant::Dark);
assert!(theme.is_ok());