([x] becomes a filled in checkbox, [ ] is an empty one)
2.0.0-alpha09Also, please wrap your code with correct syntax highlighting (not just indents).
MaterialDialog(this)
.title(R.string.attention)
.message(R.string.choose_screen)
.positiveButton(android.R.string.ok)
.show()
<item name="android:textColorPrimary">@color/black</item>
<item name="android:textColorSecondary">@color/white</item>
Obsolete, happens always
Text should be a darker color
Text is either white or transparent
This happens with all dialogs we implemented, and we just can't figure out why. We checked all styles, colors and Kotlin files for wrong configurations, but all seems to be fine.

The text color is set in styles here: https://github.com/afollestad/material-dialogs/blob/b571da41183cb57420a48592669f514296befc66/core/src/main/res/values/styles.xml#L50
Which is taking ?android:textColorSecondary from the dialog's base theme (would be Theme.AppCompat.Light.Dialog.Alert). This shouldn't be possible 馃 have you tried it on other devices?
Tested on 4 devices and various different emulators. Let me know if you need more info!
I can't reproduce on my Pixel 2 XL or emulators, at least not with the sample project.

There must be something in Screener affecting it somehow 馃
You have <item name="android:textColorSecondary">@color/white</item> above, is that in your Activity theme?
That was actually the cause. When testing, we missed changing the v23+ styles. However, removing that style would affect many other elements in the app. Do you think custom text colors could be something for a future release?
Most helpful comment
That was actually the cause. When testing, we missed changing the v23+ styles. However, removing that style would affect many other elements in the app. Do you think custom text colors could be something for a future release?