Right click Change Properties to select Change Interior Color.
CHANGE PEN THICKNESS lets you change the pen width of an existing entity.
To change entity pen thickness, type CHANGEPT:
Select entities to modify.
The prompt reads "New pen thickness:". Type in a value. Note that the value is specified in current drawing units, so explicit entry, such as 1.5mm or 0.007" is recommended.
CC3 redraws the entity using the new pen width.
Text equivalent: CHANGEPT