I am trying too align a vertical scroll view content with other content outside the scroll view, but left side of my content is missing, hidden by the mask for about 2 pixels. I am using the default Unity UI Scroll View
In the following image, the same corner image is in the top left corner in blue, outside the scroll view, and the same image in red is inside the scrollview. The red one is perfectly on top of the blue one, but the 2 leftmost and upmost pixels are masked, showing the blue one
unity sourcemask and background sliced images have a bit of rounding on them…
i usually remove images from panels etc… (or maybe could create own sliced image, without rounded borders)