Add Mouse Wheel Zoom to SpriteFrames editor's Select Frames screen

[Pegasus-Games]

Describe the project you are working on

A 2D platformer game using AnimatedSprite2D with multiple animations per entity pulled from sprite sheets.

Describe the problem or limitation you are having in your project

On the AnimatedSprite2D node's SpriteFrames editor, when you 'Add frames from sprite sheet', on the 'Select Frames' screen you can only zoom in and out via the widget located in the top left corner. It is extremely tedious to have to repeatedly push the '+' icon to zoom in to be able to better see the frames when selecting them when you have many animation sequences to add to an entity and many entities to add animations to.

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

I propose adding the ability to use the mouse wheel to zoom in and out on the Select Frames screen on the AnimatedSprite2D node's SpriteFrames editor when you 'Add frames from sprite sheet'. This would make the process faster and more efficient, saving a great deal of time and frustration when selecting frames for multiple animation sequences.

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

There is not a graphical element. On the Select Frames screen, you would scroll your mouse wheel to zoom in and out as an alternative to pressing the '+' and '-' buttons of the zoom widget located in the to left corner of the screen.

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

It would need to be a core function of the editor and it would be used often when adding frames to animation sequences.

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

It would need to be a core function of the SpriteFrames editor.