Please refer to the following for details about the Stroke Font.
6.2 Stroke Font and Standard Font
In GP-Pro EX, in the [System Settings] window click [Font] to display the [Font] workspace.
If the [System Settings] tab is not displayed in the workspace, on the [View (V)] menu, point to [Workspace (W)], and then click [System Settings (S)].
From [Font Used in Project], select the [Chinese (Simplified) Stroke Font] check box to add the font.
The following message appears when you select the check box.
Click [Yes] to use the User Screen Area when fonts cannot fit into the [Font Area], or, as in step 4, to adjust the Font Area. This will confirm the User Screen Area is also used for fonts.
If you click [No], adding the font is canceled.
Clear check boxes for fonts you will not use. This allows more free space in the Font Area.
Japanese Standard Font, English Standard Font, and English Stroke Font are fixed. You cannot remove these fonts.