Change Details

This makes the meaning of this option more clear. It also uses the correct term "checkerboard" instead of "check board". I have left the `RasterImageView::AlphaBackground*` terminology the same as I believe it makes more sense as is in terms of what the code does. For example `AlphaBackgroundNone` means we do not draw a background or draw a transparent background. Depends on D11630

This makes the meaning of this option more clear. It also uses the correct term "checkerboard" instead of "check board". I have left the `RasterImageView::AlphaBackground*` terminology the same as I believe it makes more sense as is in terms of what the code does. For example `AlphaBackgroundNone` means we do not draw a background or draw a transparent background. Depends on D11630 Before: {F5778723} After: {F5778724}

This makes the meaning of this option more clear. It also uses the correct term "checkerboard" instead of "check board". I have left the `RasterImageView::AlphaBackground*` terminology the same as I believe it makes more sense as is in terms of what the code does. For example `AlphaBackgroundNone` means we do not draw a background or draw a transparent background. Depends on D11630 Before: {F5778723} After: {F5778724}