The Counter <button> in default template has color contrast issues

[bamadesigner]

Describe the bug
The Counter in default template has color contrast issues.

The button has insufficient color contrast of 3.08 (foreground color: #ff3e00, background color: #ffece6, font size: 12.0pt (16px), font weight: normal). The expected contrast ratio is 4.5:1.

To Reproduce
Download the app and run the development environment. The button exists in the index route.

Expected behavior
The contrast between the button background color and the button text color should have a ratio of 4.5:1. Right now it is 3.08.

Severity
This is an accessibility violation and will affect some users who have low vision, color blindness, etc.

Additional context
As this is example code that users might replicate, we should make sure it is accessible for all.

[alexander-mart]

<offtop>
@bamadesigner Can you send an link to some tools or projects that detect thouse a11y issues (for buttons, for example) automatically?
</offtop>

[Rich-Harris]

The demo app has been replaced, so I'll close this (but any a11y-related issues pertaining to the new app are more than welcome) — thank you

https://netlify.demo.svelte.dev/