# THUMBSIZE System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [T](Help%20System/GSTARCAD/2021/System%20Variables/T/(T).md) ## Function Description: The THUMBSIZE system variable is used to specify resolution by pixels for all previews of thumbnails. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 3 | | Range | 0,1,2,3,4,5,6,7,8 | ## System Variable Value: **0:** 64 x 64 **1:** 128 x128 **2**: 256 x 256 **3**: 512 x 512 **4**: 1024 x1024 **5**: 1440 x1440 **6**: 1600 x1600 **7**: 1920 x1920 **8**: 2560 x 2560 --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/T/THUMBSIZE%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/T/THUMBSIZE%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/T/THUMBSIZE%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/T/THUMBSIZE%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/T/THUMBSIZE%20System%20Variable.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/T/THUMBSIZE%20System%20Variable.md)