## 6.2 Looks

Default parameters of widgets can be specified and grouped into "looks". A look is obtained by :

> `L={QTk.newLook}`

And you can specify the default for a widget by :

> `{L.set widgetname(param1:value1 ... paramX:valueX)}`

For example :

> `{L.set entry(background:white)}`

specifies that the entries will have a white background by default for the look L.

All widgets have a `look` parameter that specifies the look to use. Except when explicitly stated, widgets that serve as container for other widgets propagate their look parameter.