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Fonts can either be set globally or for each object. Global settings take precedence. Fonts are scaled with the screen height. However, there is a minimum for this scaling.
C.a.R. uses fonts in two sizes and strokes. Fonts and points are scaled with the construction, however. For small windows or applets, this would lead to very small fonts and points. Thus there is a minimal point size. Bold fonts are recommended for small screen sizes and high resolutions.
Note, that fonts for the graphics export can be scaled to an exact size. The screen preview for the graphics export scales the fonts to get the same visual appearance of the construction. This overrides the global setting for the font size and the minimal font size.
Related topics: Zoom with the mouse, Saving and loading files, Sizes
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