Linux Mint favorites/pinned section same color as the main body

On the left side where the pinned apps are
Mint-l for reference

<img width="1186" height="1152" alt="Image" src="https://github.com/user-attachments/assets/67bec2fc-52f4-4bea-b971-9ebebe1cff3e" />
<img width="1197" height="1100" alt="Image" src="https://github.com/user-attachments/assets/39da046d-9756-4a97-b40c-a255851797cd" />