title: how to change the colors of TProgressBar (background/progressbar itself) to a (custom) color in Delphi?
body: <p>Original question was about TGauge, however as pointed out in the comments it's not recommended to use, plus any attempts to set the displayed (% text) caption to a custom color would break the inversion (as it's color is just inverted from the background) aka it would not be half colored anymore.</p>
  
  <p>So I am going to use the TProgressBar, but there's still the issue of it's colors (background/progressbar itself) which doesn't seem to have an explicit property to change, it is tied with the current windows theme but there should be a way of ignoring that.</p>