updated content to refer to one or more colors

[dletorey]

Description

• Updated the content in color-mix() to refer to 1 or more colors rather than 2

Motivation

• Working on MDN issue #43560

Related issues and pull requests

• BCD PR
• FF release PR

[github-actions]

Preview URLs (1 page)

• /en-US/docs/Web/CSS/Reference/Values/color_value/color-mix

[chrisdavidmills]

Nice one, @dletorey.

The changes you've made look correct, but there are a couple of other things that need changing in light of this:

1. It would be good to update the "Syntax" section to include a couple of examples with more than two colors
2. The pseudo-syntax included at the top of the "Parameters" section is wrong and needs updating.
3. Inside the "Color percentages" section:
   • "Each of the two colors" -> "Each color"
   • "The two color percentages" -> "When two colors are being mixed, the two color percentages"
4. Inside the "Using hue interpolation in color-mix()" section: "hue values of the two colors being mixed" -> "hue values of the colors being mixed"