Set background color for WindowActionFrame

How to set Background color for WindowActionFrame Containers

In WindowActionFrame,display two buttons as OK & Cancel

For tha how to set background color

Use the stylename attribute. See an example here.

Using this Stylename attribute I could not set color for it

Make sure you application uses the same theme as you extended. If you extended halo and defined the style in it, set Halo as the project theme.
Thus it should work:

screen descriptor

<frame id="windowActions"


.halo {
  // include auto-generated app components SCSS
  @include app_components;
  @include com_company_demo-halo-ext;

  .window-actions {
    background-color: lightyellow;

Is mandatory to use halo theme? With hover doesn’t work?