* Blue blue GtkSpinner is hard to see on red .destrucive-action buttons, like the "Stop scanning" button in simple-scan, Link to the yaru github issue: https://github.com/ubuntu/yaru/issues/2182
[Test Case]
* Press the green "Scan" button in simple-scan and it will turn red with a "Stop" label and a blue spinner inside the button. The spinner is hard to see on this red background
* Build yaru from master and notice how the white spinner is much more visible against a red background
[Impact]
* Blue blue GtkSpinner is hard to see on red .destrucive-action buttons, like the "Stop scanning" button in simple-scan, Link to the yaru github issue: https:/ /github. com/ubuntu/ yaru/issues/ 2182
[Test Case]
* Press the green "Scan" button in simple-scan and it will turn red with a "Stop" label and a blue spinner inside the button. The spinner is hard to see on this red background
* Build yaru from master and notice how the white spinner is much more visible against a red background
[Regression Potential]
* No regression potential
* Tested by building yaru from source
[Other Info]
* Link to the github pull request: https:/ /github. com/ubuntu/ yaru/pull/ 2187