Make object manipulation gizmos less transparent for better visibility

[Sakari369]

Describe the project you are working on:

Any project.

Describe the problem or limitation you are having in your project:

Hard to see eg. camera manipulation gizmos on a dark background and especially when aligned with the axis, see image attached:

Can you spot the blue axis movement gizmo ? You can, if you focus closely, but took me some time to figure out where it is. Can be difficult on a night mode screen especially or not using very bright screen settings.

Describe the feature / enhancement and how it helps to overcome the problem or limitation:

Would lessen the transparency for the non-selected gizmos by default. Would make it easier to spot the manipulation gizmos.

Describe how your proposal will work, with code, pseudocode, mockups, and/or diagrams:

Make all the gizmos less transparent by default when not selected. See attached screenshot from Blender:

In blender the gizmos are still slightly transparent, but only slightly.

If this enhancement will not be used often, can it be worked around with a few lines of script?:

No.

Is there a reason why this should be core and not an add-on in the asset library?:

Part of core mechanics.

[Calinou]

If we do this, we'll have to make the arrow gizmos smaller as to not take too much screen real estate (notice how large they are in Blender).

[Sakari369]

@Calinou Well more opacity first would be already a big improvement. But yeah would probably have to scale the arrow gizmos down a bit, to a region where they still are usable but not so much obstructing.

[Calinou]

@inDigiNeous Does this look small/opaque enough to you? I decreased the size from 80 to 60 and increased the opacity from 0.4 to 0.65.

Before

After

I'd rather not make it too small as it can be difficult to pick gizmos using the mouse.

[Sakari369]

@Calinou Would have to see in practice of course, but I think any rise in opacity in this case is an improvement, this screenshot is a bit difficult to see the difference. Would maybe raise the opacity a bit more, or look at blender 2.8 for good reference point. Thanks for the work :)

Would suggest testing with a black/very dark background and seeing how it feels.

[Calinou]

This was implemented by godotengine/godot#44384 (available in 3.2.4rc1 and later), closing.