themed 2.1.0

The themed package lets you define a theme with const values, and then, by using some dark Dart magic, go and change them dynamically anyway.

[2.1.0] - 2021/10/22

• Saving and setting themes by key: Themed.save(), Themed.setThemeByKey() etc.
• Fixed https://github.com/marcglasberg/themed/issues/1

[2.0.5] - 2021/09/20

• Compatible with Flutter 2.5.

[2.0.4] - 2021/07/28

• Docs improvements.
• Small improvement for helping with tests.

[2.0.1] - 2021/07/01

• Breaking change: The id now must only be provided if it's necessary to differentiate constants.

[1.0.1] - 2021/06/30

• Docs improvement.
• First publish to pub.dev.

[1.0.0] - 2021/06/15

• Initial Commit.