Right now any StyleSheet has a list of functions without a default implementation. Implementing a StyleSheet is really annoying, because you have to override all of the functions and not just the thing you want to change.

I recently wanted to just change the border_radius of a text_input and I had to write the following code.

impl StyleSheet for Styles {
    fn active(&self) ->

Steps to reproduce:

1. Add a table
2. Hide all column
3. Now click on deploy
   and observe

Observation:
It is observed that the "Number of records and pages" are displayed to the user

Expectation:
It is expected not to show the records when all the rows are hidden which leads to confusion by showing the details

![Screenshot 2021-06-01 at 1 55 51 PM](https://user-images.githubusercon

Is your feature request related to a problem? Please describe.
PROBLEM: Mouse clicks to Lively Wallpaper content do not appear to register unless the wallpaper is focused/active window?

Describe the solution you'd like
While this may be "by design" - it would be nice to have a config option to change this behaviour.
The reason why is because there are lots of web content/apps that I'

Please, make extension params nullable, where underlying class params are nullable.
For example, now (in version 0.3.1) you cant write:

Text(message).textColor(isError ? Colors.red : null)

to change text color (from default) only for some condition.
All params of TextStyle class are nullable.