#40 add custom text color for contribution

[FabDonRixos]

Description

I have added a custom text color attribut so its variable and won't be unreadable in some situations.

Used issue #40

Type of change

• New Component (non-breaking change which adds functionality to the website)
• New Feature (non-breaking change which adds a new css component)
• Bug fix (non-breaking change which fixes a bug)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the style guidelines of this project.
• I have updated my code state to the newest version.
• I have performed a self-review of my code.
• My code is properly structured and easy to read for others.
• If something could be unclear/complex for others to understand I have made a comment for this part.
• My changes generate no new warnings or errors inside the console.
• It's easy to see what issue was used for these changes.
• I have only used module css classes, with exception for some part where you can use the index.scss.
• I have read the CODE OF CONDUCT & the CONTRIBUTING.

Components specific

• The Component is somewhere unique to already other created components.
• I have only used html and css to create my component, apart from the React component.
• I have made the whole component myself and didn't steal it from someone other.
• I have documented my own copyright statements inside the artwork List.

Feature specific

• My new Feature does not affect the styling and the functioning of other thing, in a way, so they don't work
  anymore.
• If I edited some core files of the project I have checked the code extra carefully.
• If the new feature have UI changes, I have made them responsive as good as possible.