Rectangles (as well as other shapes) have both a fill color and an outline color.

长方形（其他形状也一样）有两种颜色，一种是填充色，另一个是边框色。

youdao

As you drag a new widget onto the canvas, the editor provides a visual indicator, a green area color, and an outline view to help you place the widget where you want it.

在将新的小部件拖到这个canvas上时，编辑器会提供一个可视的指示器(一个绿色的区域颜色)以及一个outline视图以帮助将这个小部件放在理想的位置。

youdao

You will see when you come to the studio that besides the seeking for the outline I have, just like everyone else, a feeling for the power of color.

来我的画室，你就会知道，除了追求塑形，我也和其他人一样，对色彩的力量有所感悟。

youdao

Once you choose one that suits your fancy, it appears in S Note where you can adjust the size and outline style -- and then you can either find inspiration from it, or just color between the lines like it's a coloring book.

ENGADGET: Samsung Galaxy Note II review Mobile