App: Measurist
Developer: Takuto Nakamura
Genres: Dienst­programme, Grafik und Design

This application can display a ruler or a protractor on the screen.
The interval of the ruler is 1 mm, 0.1 inch, or 5 pixel.

Note: I cannot guarantee the accuracy of the scale intervals on all displays, but you can adjust it manually.

Release notes:
Modifications
- Compatible with Apple Silicon Mac.
- Fixed a bug that the position of the alpha slider is wrong in macOS Big Sur.
- Changed the interface of selecting the line color.