New Features

[alexsteinerde]

Hey,

I added some new features to the library that I need for myself.
I would appreciate it if you accept this request so others can also use the new features of changing the size and background color of a specific item.
It would also be great if you push the new podspec file to the default repository.
fixes #17

Thanks for your great work.

[felixLam]

Hi @alexsteinerde, Thank you for your PR. We greatly appreciate your contribution. However, we strive to keep diffs and PRs as small as possible. Large diffs require developers using this component to check more code when updating the dependency. Would you mind reverting your code style changes and adhere to the code style of this repository to minimise the diff?

[alexsteinerde]

@felixLam I reverted some changes to make the number of diffs as small as possible. At every new code I use the new style code now but this changes already produced diffs in the code.
Is this what you mean?

[alexsteinerde]

I would appreciate an acceptance of this pull request. Or if you have any other requirements, let me know.