I applied the following workaround to ensure the text always appears visible.
$(".km-android #myTextField").css("color", "black");
$(".km-android #myTextField").css("background-color", "white");
The 'color' property should be black to maintain consistency with what Chrome will automatically override the styling with. As for the background, as long as it contrasts black, it should be visible. I chose white.
Hope this helps,