colored text and an updatable icon?

[jmcmains]

I'm creating a personalized version of the pomodoro button, and I originally set it up to change color based on the remaining time. But I'd also like to include an icon that displays the count of Pomodoro cycles, so basically a combination of the output of a shell script and an apple script. so I'm sort of asking a 2 part question:
can I either:
a) display a dynamic icon in shell script buttons?
b) dynamically change text color in an apple script button?

Thanks for any help!

[jmcmains]

Looking over the code, it seems like my issue might be properly formatting the output of the shell script:

I'm currently attempting to output json as a string, but it seems to throw an error:
Expected to decode Dictionary<String, Any> but found a string/data instead.

here is the json string that my shell script outputs:

{"title":"25:00","image":"~/Library/Application Support/MTMR/pomodoro/t1.png"}

[jmcmains]

I was able to get a little further on this by figuring out that the issue was that I wasn't sending the image element correctly, but, ultimately i realized I could just do this with two separate buttons. It feels sort of hacky, but it solves my problem for now. Would still be nice to know if there is a proper way to output a shell script to display an icon though.