Hey, thanks for your suggestions!
- Workspace zoom; Zoom feature is planned - see development board
- Groups; Grouping objects isn't in the plans, but selecting/moving multiple objects is - see development board
- Duplicating group; Not sure if this will be added.
- Background; Still thinking how to incorporate, since it isn't in line with the current way sprites are build.
- Alien accessoires; Will keep this in mind, I like the idea!
- Screen resizing; Is planned - see development board
- Tablet/Surface pro support; Won't be happening, too little users to warrant the time.
- Submit templates; Good idea, will be working on some sort of online community to upload templates to.