If dragging a slider, for example, to zoom in on a web page doesn’t feel quite right for you, go to Settings > Appearance, enable Use Buttons in Range Control and see if that works better. Then you can do the changes by clicking the + and – buttons.

Range controls are used for the following settings:

• Adjust web page or tab zoom levels in the bottom right corner of the browser window.
• Change the size of the user interface.
• Limit accent color saturation and color contrast in the Themes editor.
• Change active tab’s minimum width on the Tab Bar.
• Choose the delay time for tab stacking when using the drag and drop method.
• Set minimum stroke length for mouse gestures.
• Update default web page zoom.
• Adjust font settings for Reader View.