Cancelling input prompt still changes theme and palette.

[aisgbnok]

Describe the bug When entering a custom color, if you dismiss the browser input prompt the color's palette will still change. The error color seems to be very similar to the primary color.

To Reproduce Steps to reproduce the behavior:

1. Go to Material Theme Builder for Web
2. Click on "Custom"
3. Right-click on "Secondary"
4. Click on "Cancel" for the input prompt
5. Secondary palette changes
6. Right-click on "Tertiary"
7. Click on "Cancel" for the input prompt
8. Tertiary palette changes
9. Right-click on "Primary"
10. Click on "Cancel" for the input prompt
11. Palette resets

Expected behavior The theme should not change when canceling the input prompt.

Screenshots

https://user-images.githubusercontent.com/10838153/164603500-e42b3cb9-9932-4b9c-9460-5c809a654669.mp4

Desktop:

• OS: Windows 11 22598.200
• Browser: Chrome
• Version: 100.0.4896.127

[jwill]

Fixed.