🎨 Palette: Polish CLI UX and fix syntax errors in demo scripts

.Jules/palette.md

@@ -31,3 +31,7 @@
 ## 2026-04-02 - [Micro-UX Polish for Demo CLI Scripts]
 **Learning:** For tutorial-style CLI scaffolds, several micro-UX touches significantly improve the professional feel and onboarding experience: (1) using `random.sample` instead of `random.choices` for unique mock data generation; (2) displaying the total execution duration in the final success panel; and (3) adding descriptive titles to `rich.Rule` components for better visual hierarchy between results and "Next Step" guidance.
 **Action:** Ensure all demo scripts use unique mock data, provide performance feedback via execution duration, and utilize rule-titles for clear sectional separation.
+
+## 2026-04-04 - [Consistent Visual Hierarchy and Accessibility in CLI]
+**Learning:** Using 'bold blue' for all structural components (Panels, Rules, and instructional text) creates a strong, consistent visual hierarchy and improves accessibility by ensuring sufficient contrast. Applying `footer_style="bold"` in `rich.table.Table` definitions instead of inline markup maintains cleaner code and consistent visual weight for summary data.
+**Action:** Standardize on `bold blue` for CLI structural elements and use explicit `footer_style` properties in tables to ensure high-contrast, professional-grade terminal interfaces.

01_getting_started.py

@@ -16,11 +16,6 @@ def get_customer_ids() -> list[str]:
     """Fetch customer IDs from a database or API."""
     # Use sorted and zero-padded IDs for better terminal alignment
     # Use random.sample to ensure unique IDs in the demo output
-    # Use random.sample to ensure unique customer IDs
-    ids = [f"customer-{n:02d}" for n in random.sample(range(100), k=5)]
-    # Using random.sample ensures unique IDs for a more realistic demo
-    ids = [f"customer-{n:02d}" for n in random.sample(range(100), k=5)]
-    # Use random.sample to ensure unique customer IDs in the demo
     ids = [f"customer-{n:02d}" for n in random.sample(range(100), k=5)]
     return sorted(ids)
 
@@ -50,7 +45,7 @@ def main():
             Panel(
                 Markdown(main.__doc__.strip()),
                 title="Prefect Workflow Guide",
-                border_style="blue",
+                border_style="bold blue",
                 padding=(1, 2),
             )
         )
@@ -71,9 +66,10 @@ def main():
         results = [f.result() for f in futures]
 
     # Calculate duration
+    duration = time.perf_counter() - start_time
+
     # Add visual breathing room before results
     console.print()
-    duration = time.perf_counter() - start_time
 
     # Display results in a clean table for better readability
     table = Table(
@@ -83,9 +79,12 @@ def main():
         show_footer=True,
         box=box.ROUNDED,
     )
-    table.add_column("Customer ID", style="cyan", footer="Total")
+    table.add_column("Customer ID", style="cyan", footer="Total", footer_style="bold")
     table.add_column(
-        "Status", style="green", footer=f"[bold]{len(results)} Processed[/bold]"
+        "Status",
+        style="green",
+        footer=f"{len(results)} Processed",
+        footer_style="bold",
     )
 
     # Use zip to map results back to their original IDs more reliably
@@ -95,8 +94,6 @@ def main():
     console.print(table)
     console.print()
 
-    duration = time.perf_counter() - start_time
-
     console.print(
         Panel.fit(
             f"[bold green]✨ Successfully processed {len(results)} customers in {duration:.2f}s![/bold green]",
@@ -105,17 +102,10 @@ def main():
         )
     )
 
-    console.print(Rule("Next Step", style="blue"))
-    console.print(
-        "➡️ Try running [cyan]python 02_logging.py[/cyan] to learn about logging in Prefect!"
-    console.print(
-        "Try running [cyan]python 02_logging.py[/cyan] to learn about logging in Prefect!"
-    console.print(
-        "Try running [cyan]python 02_logging.py[/cyan] to learn about logging in Prefect!"
     console.print()
     console.print(Rule("🚀 Next Step", style="bold blue"))
     console.print(
-        "[bold blue]➡️[/bold blue] Try running [cyan]python 02_logging.py[/cyan] to learn about logging in Prefect!"
+        "[bold blue]➡️[/bold blue] [bold blue]Try running[/bold blue] [cyan]python 02_logging.py[/cyan] [bold blue]to learn about logging in Prefect![/bold blue]"
     )
 
     return results

02_logging.py

@@ -17,11 +17,6 @@ def get_customer_ids() -> list[str]:
     """Fetch customer IDs from a database or API."""
     # Use sorted and zero-padded IDs for better terminal alignment
     # Use random.sample to ensure unique IDs in the demo output
-    # Use random.sample to ensure unique customer IDs
-    ids = [f"customer-{n:02d}" for n in random.sample(range(100), k=5)]
-    # Using random.sample ensures unique IDs for a more realistic demo
-    ids = [f"customer-{n:02d}" for n in random.sample(range(100), k=5)]
-    # Use random.sample to ensure unique customer IDs in the demo
     ids = [f"customer-{n:02d}" for n in random.sample(range(100), k=5)]
     return sorted(ids)
 
@@ -59,7 +54,7 @@ def main():
             Panel(
                 Markdown(main.__doc__.strip()),
                 title="Prefect Workflow Guide",
-                border_style="blue",
+                border_style="bold blue",
                 padding=(1, 2),
             )
         )
@@ -80,9 +75,10 @@ def main():
         results = [f.result() for f in futures]
 
     # Calculate duration
+    duration = time.perf_counter() - start_time
+
     # Add visual breathing room before results
     console.print()
-    duration = time.perf_counter() - start_time
 
     # Display results in a clean table for better readability
     table = Table(
@@ -92,9 +88,12 @@ def main():
         show_footer=True,
         box=box.ROUNDED,
     )
-    table.add_column("Customer ID", style="cyan", footer="Total")
+    table.add_column("Customer ID", style="cyan", footer="Total", footer_style="bold")
     table.add_column(
-        "Status", style="green", footer=f"[bold]{len(results)} Processed[/bold]"
+        "Status",
+        style="green",
+        footer=f"{len(results)} Processed",
+        footer_style="bold",
     )
 
     # Use zip to map results back to their original IDs more reliably
@@ -104,29 +103,18 @@ def main():
     console.print(table)
     console.print()
 
-    duration = time.perf_counter() - start_time
     console.print(
         Panel.fit(
             f"[bold green]✨ Successfully processed {len(results)} customers with detailed logging in {duration:.2f}s![/bold green]",
-
-    console.print(
-        Panel.fit(
-            f"[bold green]✨ Successfully processed {len(results)} customers with detailed logging in {duration:.2f}s![/bold green]",
-            f"[bold green]✨ Successfully processed {len(results)} customers in {duration:.2f}s![/bold green]",
             title="Result",
             border_style="green",
         )
     )
 
-    console.print(Rule("Conclusion", style="blue"))
-    console.print(Rule("Next Step", style="blue"))
-    console.print(Rule("Conclusion", style="blue"))
-    console.print(
-        "🎉 You've completed the Quickstart! Check out the [cyan]README.md[/cyan] for more features."
     console.print()
     console.print(Rule("🎉 Finishing Up", style="bold blue"))
     console.print(
-        "🎉 You've completed the Quickstart! Check out the [cyan]README.md[/cyan] for more features."
+        "[bold blue]🎉 You've completed the Quickstart! Check out the[/bold blue] [cyan]README.md[/cyan] [bold blue]for more features.[/bold blue]"
     )
 
     return results