Describe the bug
The calendar class settings UI in the admin area has UX/design issues that make it confusing to use:

• Missing labels: The two color pickers lack labels - it's unclear which one sets the background color and which sets the border color
• Broken layout: The input elements appear misaligned and the overall layout looks unintentional

To Reproduce
Steps to reproduce the behavior:

1. Go to admin > calendar
2. See the mess

Expected behavior

• Each color picker should have a clear label (e.g., "Background", "Border")
• The layout should be aligned with other sections

Screenshots

Software:

• HortusFox: 5.7
• PHP: 8.3.0

Desktop (please complete the following information):

• OS: macOS
• Browser: Arc
• Version: 1.130.1 (73666)