This is more of a usability issue than a bug.
Problem:
As per the screenshot below, you can’t see the back and close modal buttons when they are on top of a custom block that has a dark background.
In the upper left corner is a back link, in the upper right corner is a close link. Neither is visible due to the background image.
Solution:
A couple solutions to consider…
- Have the color of the action button icons dynamically change based on legibility.
- Define a background color for each action - example: white background - radius/roundness should follow app style settings.