Can the default colors for the gemini http site be changed?

[Leo]

> following these standards is something we should all strive for

Instead of trying to fix millions of web pages and putting the burden
on all the content producers, wouldn't it be easier to fix browsers to
automatically assign suitable colours when the contrast is too low?
After all, a user agent has no obligation to use the colours recommended by
the website and it's stylesheets.

> both Chrome and Firefox have means of seeing the WCAG color contrast
> ratios.

And since Chrome and Firefox both have code for calculating colour contrast
ratios, a lot of the work is already done.

If we are disregarding user agents being able to pick colours as a valid
thing to do, should we also add styling to the Gemini document format so
content producers can make sure their text is displayed correctly and is
accessible?