[Mobile] Caret is obliterated by colored text background

[jongkb]

(Observed on Android)

Actual
Caret appears behind colored text background, making the caret partially visible.

Expected
Caret appears on top of colored text background.

Thank you.

[singerdmx]

code is here

[singerdmx]

This is basically how to add background color for TextSpan that will not be obliterated by cursor

@florianh01 @friebetill any thought?

[xinyuezhang0402]

Likely the canvas.drawRRect method

[singerdmx]

You are right
Need to figure out how canvas works

[singerdmx]

Probably has to do with LayerLink