The following two columns should be pixel-perfect identical (the first two rows should just be rows of Xs, the last row should be a step pattern):
| Test | Control |
|---|---|
|
XXX
XXX
XXX
|
XXX
XXX
XXX
|
|
XXX
XXX
XXX
|
XXX
XXX
XXX
|
|
XXX
XXX
XXX
|
XXX
XXX
XXX
|