SVG diagonal percentage distances are defined in terms of viewBox diagonal length divided by sqrt(2) (normalized). See https://svgwg.org/svg2-draft/coords.html#Units Change-Id: I0d2101315d5f6c3333d021251eff17f6c13e804f Reviewed-on: https://gerrit.libreoffice.org/c/core/+/175991 Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com> Tested-by: Jenkins
