Jupyter: How to change color for widgets like SelectMultiple()?

The challenge:

How can you change the color for backround, font etc for widgets.SelectMultiple() and other widgets for that matter? Here's a simple setup for widgets.SelectMultiple()

Snippet / Cell 1:

# settings
%matplotlib inline

# imports
from ipywidgets import interactive, Layout
from IPython.display import clear_output
import ipywidgets as widgets
from IPython.display import display

# widget 1
wdg = widgets.SelectMultiple(
    options=['Apples', 'Oranges', 'Pears'],
    value=['Oranges'],
    #rows=10,
    description='Fruits',
    disabled=False
)

display(wdg)

Widget 1:

What I've tried:

I thought i was onto something with Layout and style and was hoping the following setup with layout=Layout(width='75%', height='80px') would let me change colors somehow as well and not only width and height:

Snippet / Cell 2:

wdg2 = widgets.SelectMultiple(
    options=['Apples', 'Oranges', 'Pears'],
    value=['Oranges'],
    description='Fruits',
    layout=Layout(width='75%', height='80px'),
    disabled=False
)

display(wdg2)

Widget2:

But to my huge disappointment it seems that you can't change colors in a similar way. According to the ipywidgets docs, properties of the style attribute are specific to each widget type. You can get a list of the style attributes for a widget with the keys property. And wdg2.style.keys returns this:

['_model_module',
 '_model_module_version',
 '_model_name',
 '_view_count',
 '_view_module',
 '_view_module_version',
 '_view_name',
 'description_width']

And since there are noe color attributes there, is it impossible to change the colors for widgets.SelectMultiple()? For other widgets, like Button, you'll find an attribute button_color as well.

from Jupyter: How to change color for widgets like SelectMultiple()?