# v0.1.18

- added configurable viewport support with a default of `1440x900`
- added screenshot comparison runtime support for viewport screenshots and element screenshots
- added nested relative screenshot path handling for expected, actual, and diff artifacts
- added alias-based masking support for screenshot comparisons
- added acceptance tests for viewport config and screenshot comparison behavior
- documented viewport defaults, screenshot folders, and screenshot configuration in the README, configuration guide, and template config
