Lack of units in Image Export Options dialog

[kromanenko]

Expected behavior

Image export options should have units clearly specified.

Observed behavior

• Units of Bitmap Size "Resolution:" dialog are not clear. Implying dots per inch?
• Units of Bitmap Size "Width:" and "Height:" fields not specified. Implicitly, pixels, most likely.
• Units of Borders "Left / Right - Border:" and "Top / Bottom - Border:" are not specified. Are they pixels or percents?

Steps to reproduce

• Launch the LibreCAD with any drawing.
• Navigate through menus: File -> Export -> Export as Image.
• Click "Save".
• Observe the "Image Export Options" dialog.

LibreCAD version info

Version: 2.2.0.2
Compiler: Clang 13.0.0
Compiled on: Jul 29 2023
Qt Version: 5.15.10
Boost Version: 1.82.0
System: macOS 12.7

Operating System info

System Version: macOS 12.7.2 (21G1974)
Kernel Version: Darwin 21.6.0
MacBook Pro (14-inch, 2021)

[dongxuli-concord-design]

This is a feature request.