I try to customize a grid in my application using theming and compass.
I try to use the ui property in my grid but I don't understand. It seems it's not possible to override defaut grid style as it's possible for a panel or a window.
For panel or window, I can use mixin class like ext-panel-ui and just use parameters to customize it but this class doesn't exist for grid. Why ?!
Please I nedd some help, someone have an idea ?