[proposed labels enhancement, question] Add variables

[DenisEke]

From my quick work with your animation tools I noticed the lack of one feature I desire. How about adding variables to the editor that then can be accessed programmatically from the engines (flutter etc.).

An example:
I have an animation for an icon and want to set its colour. Based on my search the way to do this for now is to get the different pieces of the artboard and then change their fill colour. (https://stackoverflow.com/questions/62489065/change-color-in-rive-flare).

The way I would love to use this feature is the following. In the editor I create a variable and then I set the colour (or any other atomic property) to this variable. I then can easily access and set this variable from for example Flutter.

Let me know if you need further clarification and what you think of this. Maybe I am missing a better way?