General-purpose progress bar.
General-purpose progress bar. Shows fill percentage from right to left.
If [code]true[/code], the fill percentage is displayed on the bar.
The color of the text.
The tint of text outline of the [ProgressBar].
The color of the text's shadow.
The size of the text outline.
Font used to draw the fill percentage if [member percent_visible] is [code]true[/code].
Font size used to draw the fill percentage if [member percent_visible] is [code]true[/code].
The style of the background.
The style of the progress (i.e. the part that fills the bar).