feat[dev]: ✨ update sd-brandshape - add comp specific color variables with opacity-0

[coraliefeil]

Description

This tasks describes the Figma implementation for: #2806

figma: https://www.figma.com/design/VTztxQ5pWG7ARg8hCX6PfR/branch/X1rnR0JYd2gbF7x25JD05H/Solid-DS-%E2%80%93-Component-Library?t=h2xikcaOUUKb8NS6-0

DoR

• Item has been estimated by the team
• Item dependencies have been identified and documented

[coraliefeil]

@mariohamann could you estimate SP for this, pls? THX