Follow the colors.
Code:
dialog [color:red]new_dialog[/color] {
  option dbu
  size -1 -1 100 100
  title "Duh, something, I forgot..."
  button "Finish",  [color:blue]1[/color], 10 10 20 20, OK
}
 
alias newdialog {
  dialog -m [color:purple]MyNewDialog[/color] [color:red]new_dialog[/color]
}
 
on *:DIALOG:[color:purple]MyNewDialog[/color]:sclick:[color:blue]1[/color]:{
  dialog -x [color:purple]$dname[/color]
}