Many elements with text fields have Alignment as a property you can set. Unless a text field fills the width available to it (as happens with a button or a dropdown menu), you can choose for the text to start at the left or the right of the element’s text field or to be centered in the space.
To change alignment, select an element with the Alignment property and scroll down the Properties Pane until you see Alignment. Uncheck Use Theme Value and click the Left, Center or Right button. Alignment changes update immediately in the tool preview.
The examples below show how the alignment changes affect the Title element of a Directory Tool.