If true, the y and y_bottom keys are ignored and the panel is placed at the center of the y-axis of the screen. If the panel is resized it will remain at that position - i.e. the panel will grow on both sides. If false, the y and y_bottom keys specify the location of the panel.
Ọ bụrụ na ọ bụ eziokwu, a ga-eleghara y kii ahụ anya ọ ga-anọkwa ebe ahụ - ya bụ na. paneelụ ahụ ga-eto na ha abụọ. Ọ bụrụ na ọ bụ asị, y kii ahụ ga-ezipụta ebe nke paneelụ.