The so-called master is coming: if you want to set the width of the line, you can set the width you want in the user default settings-basic environment-drawing-width. If you want to set the width of printed lines, you can choose different line width ratios when printing. The line width ratio of different sizes of drawings is different, but I usually set it to 0.3 0.5 0.9. The roughness symbol system is sometimes a thick line by default. You can set it as a thin solid line in the user default settings-Drawing-Roughness Symbol-Width. The printed drawings will be more beautiful.