This is the base txtProgressBar but with a little modification to implement the label parameter for style=3. For full info see txtProgressBar
txtProgressBar2(
min = 0,
max = 1,
initial = 0,
char = "=",
width = NA,
title = "",
label = "",
style = 1
)min value for bar
max value for bar
initial value for bar
the character (or character string) to form the progress bar.
progress bar width
ignored
text to put at the end of the bar
bar style