I am trying to create a GUI for a phyiscs project and I need subscripts of these things.
H_0,
Omega_b,
Omega_dm,
Omega_\Lambda
Omega_r 
in the form of latex 
My code is something like this
   import PySimpleGUI as sg
sg.change_look_and_feel('Topanga')      
layout = [
    [sg.Text('Enter the Parameters')],
    [sg.Text("H\N{SUBSCRIPT ZERO}", size=(15, 1)), sg.InputText()],
    [sg.Text("\N{GREEK CAPITAL LETTER OMEGA}\N{LATIN SUBSCRIPT SMALL LETTER B}", size=(15, 1)), sg.InputText()],
    [sg.Text("\N{GREEK CAPITAL LETTER OMEGA}\N{LATIN SUBSCRIPT SMALL LETTER R}", size=(15, 1)), sg.InputText()],
    [sg.Text("\N{GREEK CAPITAL LETTER OMEGA}\N{GREEK SUBSCRIPT SMALL LETTER LAMDA}", size=(15, 1)), sg.InputText()],
    [sg.Text("\N{GREEK CAPITAL LETTER OMEGA}\N{LATIN SUBSCRIPT SMALL LETTER DM}", size=(15, 1)), sg.InputText()],
    [sg.Text("z", size=(15, 1)), sg.InputText()],
    [sg.Submit(), sg.Cancel()]
]
window = sg.Window('Simple data entry window', layout)
event, values = window.read()
window.close()
print(event, values[0], values[1], values[2], values[3], values[4], values[5])  
The most interesting thing is that it can print letters such as M or R but it cannot print B ?? Or It can print phi but it cannot print lambda ? 
You can try this to see that this combination works.
import PySimpleGUI as sg
sg.change_look_and_feel('Topanga')      
layout = [
    [sg.Text('Enter the Parameters')],
    [sg.Text("H\N{SUBSCRIPT ZERO}", size=(15, 1)), sg.InputText()],
    [sg.Text("\N{GREEK CAPITAL LETTER OMEGA}\N{LATIN SUBSCRIPT SMALL LETTER M}", size=(15, 1)), sg.InputText()],
    [sg.Text("\N{GREEK CAPITAL LETTER OMEGA}\N{LATIN SUBSCRIPT SMALL LETTER R}", size=(15, 1)), sg.InputText()],
    [sg.Text("\N{GREEK CAPITAL LETTER OMEGA}\N{GREEK SUBSCRIPT SMALL LETTER PHI}", size=(15, 1)), sg.InputText()],
    [sg.Text("z", size=(15, 1)), sg.InputText()],
    [sg.Submit(), sg.Cancel()]
]
window = sg.Window('Simple data entry window', layout)
event, values = window.read()
window.close()
print(event, values[0], values[1], values[2], values[3], values[4], values[5])  
Please help, Thanks
 
    