ConvertCAD 1.2.3

Changed

• Interface polish: the language button has the size of the theme button and no frame;
  no white line above the Settings / Layers / Report tabs; the grey line under the
  Source PDF / DXF result tabs is continuous (blue only under the selected tab); panel
  titles in regular weight and slimmer; no line between Open PDF and its arrow.
• Sheets panel: the green "Vector" tag is gone, the paper size takes its place (scanned
  and empty sheets are still named under the sheet).
• Welcome screen: the step numbers are centred in their circles.