### Apache Airflow version

2.2.0b1 (beta snapshot)

### Operating System

Mac OSX 11.5.2

### Versions of Apache Airflow Providers

_No response_

### Deployment

Docker-Compose

### Deployment details

_No response_

### What happened

In the tree view, the status color for deferred is very difficult to distinguish from up_for_reschedule and is generally not very distinct. I can’t imagine it’s good for people with colorblindness either.

### What you expected to happen

I expect the status colors to form a distinct palette. While there is already some crowding in the greens, I don't want to see it get worse with the new status.

### How to reproduce

Make a deferred task and view in tree view.

### Anything else

I might suggest something in the purple range like [BlueViolet #8A2BE2](https://www.color-hex.com/color/8a2be2)


### Are you willing to submit PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

airflow/settings.py
import os
import sys
import warnings
from typing import Optional
import pendulum
import sqlalchemy
from sqlalchemy import create_engine, exc
from sqlalchemy.engine import Engine
from sqlalchemy.orm import scoped_session, sessionmaker
from sqlalchemy.orm.session import Session as SASession
from sqlalchemy.pool import NullPool
from airflow.configuration import AIRFLOW_HOME, WEBSERVER_CONFIG, conf  
from airflow.executors import executor_constants
from airflow.logging_config import configure_logging
from airflow.utils.orm_event_handlers import setup_event_handlers
log = logging.getLogger(__name__)
TIMEZONE = pendulum.tz.timezone('UTC')
try:
    tz = conf.get("core", "default_timezone")
    if tz == "system":
        TIMEZONE = pendulum.tz.local_timezone()
    else:
        TIMEZONE = pendulum.tz.timezone(tz)
except Exception:
    pass
log.info("Configured default timezone %s", TIMEZONE)
HEADER = '\n'.join(
    [
        r'  ____________       _____________',
        r' ____    |__( )_________  __/__  /________      __',