Colours palette update + dark theme addition

[Jademhm]

For which component?

Colours (Foundations)

Description

Why this update?

• To heightened our accessibility standards and reach WCAG AA standards on our texts

What this update brings

Update

• 3/4 of the colours have been renamed for clarity ("Yellow" becomes "Primary", "Dark"/"Light" becomes "Default", removal of all "Dark"/"Light" mentions, etc.)
• Real split of the default / dark theme palettes which are two individual entities that connects with counterpart ("Default 900" remains eponymous on both themes)

Removal

• Historical names (such as Pampas, Isabelline, etc.)

Add-on

• A counterpart "Default 400" that existed in the dark theme but not on the default one
• Dark theme system colours

Resources

• Current palette on Figma
• Work that has been done on Figma (construction)
• Finalized palette rework
• Notion page on the rework

Due Date

TBD