TextArea non-parity, not correctly working on Android

I've tested with 5.3.0 and 5.4.0-rc. Both have issues. On Linux proper, it behaves as as expected.

I am using the read-only flag to show a ULA with font.pointSize: 20

On android with readonly: true:
Both versions:
Gray background dark gray text (Linux is white/black - as expected)
On 5.3:
Can't be scrolled, effectively disabled.

On 5.4:
Starts out the same colors as 5.3, and will flick. But after pressing (click) in the text, the colors become white/black. The text caret appears.
The atYEnd from Flickable does not ever evalute to true.

I would expect it to behave identical to the Linux version.