In some apps, the color of statusbar would be inverted:

(a pic found on web, not captured on my phone)
But when using this app, I found that while the clock turned black, the color of progress bar still remained white, which makes it impossible to be distinguished from statusbar background. The same issue happens on other apps that also invert statusbar color.
PS: I've checked Follow clock color in the setting. I don't have GravityBox installed. I'm using CM 13.0 on Moto G 2014 LTE (codenamed thea).
In some apps, the color of statusbar would be inverted:
(a pic found on web, not captured on my phone)
But when using this app, I found that while the clock turned black, the color of progress bar still remained white, which makes it impossible to be distinguished from statusbar background. The same issue happens on other apps that also invert statusbar color.
PS: I've checked
Follow clock colorin the setting. I don't have GravityBox installed. I'm using CM 13.0 on Moto G 2014 LTE (codenamed thea).