How do you generate app icons and app flavors?

[0.2.3-dev]

Added

• foreground_padding config — control how much the foreground is inset from the canvas edges (0.0–0.5), supports decimal fractions and percentage strings (e.g. "20%")
• Example config files — added all possible configuration examples in example/ for reference (all_platforms, image background, padding, splash, platform overrides, flavors with overrides, flavors with splash)

Improved

• Config validation error messages — collected all errors before throwing so users can fix them in one pass; clearer messaging for missing fields and invalid ranges