When will these two features be added?

[RONG-GUI]

What is the problem or limitation you are having?

1. Add a background image or gradient color display to the background of the control.
2. Controls can be displayed overlapping with each other.
   If these two features are developed, then most beautiful and more modern apps can be developed, and more developers will join in.

Describe the solution you'd like

1. Add a background image or gradient color display to the background of the control.
2. Controls can be displayed overlapping with each other.

Describe alternatives you've considered

I have used the Flet framework, but there are issues with its startup logic and packaging difficulties.

Additional context

No response

[freakboy3742]

Migrated to a discussion, rather than an issue.

The short version is that neither of these features are ever likely to be implemented.

Toga is a platform native GUI toolkit. Part of this design philosophy is that apps adopt the look and feel of native applications. This means that a button on macOS looks like a macOS button; on Windows, it looks like a Windows button. Adding background images and gradients to a button is a feature that is used to make buttons look the same on every platform, which is explicitly contrary to what Toga is trying to achieve.

If you want your buttons to look the same on every platform, Toga is not the GUI toolkit for you.

As for overlapping controls - I'm having difficulty imagining why this is desirable at all. If controls overlap, you're inherently introducing ambiguity over which control will be activated when you click on a specific location on the screen.

[RONG-GUI]

Control overlap, for example: on a carousel image control, display a clickable avatar entrance. The overlap of these two controls is common in our mobile development, especially in voice and video applications.

[RONG-GUI]

As shown in the picture, these controls are stacked on top of the image control, and the image can also be viewed by clicking to enlarge. This is not only true for mobile devices, but also for many PCs:

[freakboy3742]

I'd argue that the icons at the top of that screenshot are part of native navigation, not "buttons" in the traditional sense; but I can see the general case you're describing where there are buttons overlayed on an image (or other background).

I think the key there, though, is that the use case "controls over a background image", not "overlaid controls". A request for putting a background on a box has existed for a while (#1800); it wouldn't be too hard to implement, but it's not a high priority for me personally at present.