handle external alias todo

Author: cptpiepmatz

blog/2025-09-02-nushell_0_107_0.md

@@ -596,13 +596,31 @@ After:
 
 Aliases to external commands will now be properly highlighted as external commands.
 
-> TODO(release-notes): ensure these pictures render correctly on the blog
-
 Behavior _before_ this PR:
-![image](https://github.com/user-attachments/assets/1dc855df-fde8-489e-8c5e-c02979874289)
+
+```ansi
+> $env.config.highlight_resolved_externals = true
+> $env.config.color_config = { shape_external: red_bold, shape_external_resolved: yellow_bold, shape_internalcall: blue_bold }
+> alias internal-alias = echo
+> alias external-alias = coreutils echo
+> alias unresolvable-alias = notacommand
+> alias bash = notacommand
+> "internal-alias; external-alias; unresolvable-alias; bash;" | nu-highlight
+internal-alias; external-alias; unresolvable-alias; bash;
+```
 
 Behavior _after_ this PR:
-![image](https://github.com/user-attachments/assets/9e3a03bf-6730-4849-9123-42bd6b08dd39)
+
+```ansi
+> $env.config.highlight_resolved_externals = true
+> $env.config.color_config = { shape_external: red_bold, shape_external_resolved: yellow_bold, shape_internalcall: blue_bold }
+> alias internal-alias = echo
+> alias external-alias = coreutils echo
+> alias unresolvable-alias = notacommand
+> alias bash = notacommand
+> "internal-alias; external-alias; unresolvable-alias; bash;" | nu-highlight
+internal-alias; external-alias; unresolvable-alias; bash;
+```
 
 ### Prevent `detect columns` from creating invalid records with duplicate keys