Onion skin function

[Gemini04126]

I know I've suggested this on Discord like three times, but it really would make aligning sprites slightly easier. Might try to do it myself and submit a pull request, but I have zero experience working with Electron, so that's not a guarantee.

Here's the example from the Wikipedia article for onion skinning, just to make sure you know what I'm talking about this time.

Maybe right-clicking on a frame or pressing 'o' in the editor could do it? Add a box for what frame to display in the control list, maybe?

[kirjavascript]

ah I'm not really active on discord so wouldn't've seen the messages.

this is a good solution to the lining up problem (MainMemory suggested having a masking image in addition, but this is easier) and it'd be nice to use it. the UI / controls just need to be considered.

maybe showing X number of surrounding frames superimposed would get the job done? (where the user can choose X)

if you don't end up implementing it I will next time I'm working on this project