You can specify the background color and border style of the grid view through GridBase.styles property.
grid.setStyles({
background: '#1000ff88',
border: '#0000ff,1px,dashed'
});
If set the background color of the grid differently from white, you should specify the background color of body area separately as below.
grid.loadStyles({
body: {
background: '#fff'
}
});
You can specify border of the grid styles as null, and specify borderLeft, borderRight, borderTop, borderBottom separately to display the grid borders. v 1.3.8