Code review comment for lp://staging/~fboucault/ubuntu-ui-toolkit/simple_theming

QtQuick Controls style shave "panel" component in styles, so they separate style properties from visuals. In this way you can change the style properties separately from the visuals. What do you think, shouldn't we also have this feature?

On the other hand we have the delegates specifying the styling properties as public properties, so a theme which is based on an other one can simply override the previous theme delegate and change these properties only...