fix: order ui accent before nested config tables (#2698)

* fix: order ui accent before nested config tables

refs #2697

* test: reject duplicate ui accent examples

refs #2697

---------

Co-authored-by: akbash-bot <300245827+akbash-bot@users.noreply.github.com>

1 files changed, 15 insertions, 4 deletions

diff --git a/src/main.rs b/src/main.rs
index 87f3ce0a..12711f3a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -333,6 +333,10 @@ const DEFAULT_CONFIG: &str = r##"# herdr configuration
 # distinct static glyphs for blocked, working, done, idle, and unknown states.
 # status_indicators = "dots"
 
+# Accent color for highlights, borders, and navigation UI.
+# Accepts: hex (#89b4fa), named colors (cyan, blue, magenta), or rgb(r,g,b)
+# accent = "cyan"
+
 # Expanded agent rows. Built-ins are state_icon, state_text, machine, workspace, tab,
 # pane, agent, terminal_title, and terminal_title_stripped.
 # Custom values reported through pane metadata use a $name token.
@@ -354,10 +358,6 @@ const DEFAULT_CONFIG: &str = r##"# herdr configuration
 # row_gap = 0
 # rows = [["state_icon", "workspace"], ["branch", "git_status"]]
 
-# Accent color for highlights, borders, and navigation UI.
-# Accepts: hex (#89b4fa), named colors (cyan, blue, magenta), or rgb(r,g,b)
-# accent = "cyan"
-
 # Background notification popup delivery
 [ui.toast]
 # off = disable pop-up notifications
@@ -798,6 +798,17 @@ mod tests {
     use super::*;
 
     #[test]
+    fn default_config_lists_ui_accent_before_nested_tables() {
+        let accent_marker = "# accent = \"cyan\"";
+        assert_eq!(DEFAULT_CONFIG.matches(accent_marker).count(), 1);
+
+        let accent = DEFAULT_CONFIG.find(accent_marker).unwrap();
+        let sidebar = DEFAULT_CONFIG.find("# [ui.sidebar.agents]").unwrap();
+
+        assert!(accent < sidebar);
+    }
+
+    #[test]
     fn nested_herdr_blocks_when_env_is_set() {
         let config = config::Config::default();
         assert!(should_block_nested_for_env(&config, Some(HERDR_ENV_VALUE)));