Browsing Greek translation

Translators: This string should be treated as a role describing an object.
Examples of roles include "checkbox", "radio button", "paragraph", and "link."
A slider is a widget which looks like a bar and displays a value as a range.
A common example of a slider can be found in UI for modifying volume levels.
The reason we include the orientation as part of the role is because in some
applications and toolkits, it can dictate which keyboard keys should be used
to modify the value of the widget.