Actual colour codes VS changing Alpha value for fonts

1. What is alpha value in color?
2. What is the purpose of colored text?
3. Can fonts have multiple colors?
4. What is font Colour?

What is alpha value in color?

The alpha channel controls the transparency or opacity of a color. Its value can be represented as a real value, a percentage, or an integer: full transparency is 0.0, 0% or 0, whereas full opacity is 1.0, 100% or 255, respectively.

What is the purpose of colored text?

Color is sometimes used to convey meaning beyond the basic text. For example, in a course syllabus, you may use color to emphasize an important statement. Or, on a PowerPoint slide showing a multiple choice question, you might show the correct answer in green, but color the incorrect answers in red.

Can fonts have multiple colors?

Color fonts (also known as chromatic fonts) can use multiple colors, including gradients, in a single glyph, rather than the flat, single color used by typical, non-color (monochromatic) fonts.

What is font Colour?

Font color is how you insert colorized text, such as red, orange, green, blue and indigo, and many others. You can specify its background color at the same time. Font color is also how you can color wikilinks to something other than blue for when you need to work within background colors.