Could anyone let me know what software you use to create assets for your game? I downloaded an image from the internet and uploaded it to Ready Maker, the upload was successful but the background (grey-and-white checkboxes) were also included. That is why it is not possible to use my own assets other than the background.
I use Lunapic on pc to erase white background around sprites.
And you can use piskelapp to draw your own sprites/animated gifs
Thanks for the response @Suzzy-Grey
This site works…