Turn it to transparency in assy then save. go back to the drawing it should look like you want.
You can set up a Layer with the desired properties (line color, thickness, type, etc.), then right-click on the component and choose "Component Line Font" from the drop-down. That will bring up the dialog box shown below. "Use document defaults" at top left will be selected. You'll need to un-check it, then you can choose the desired Layer from the Layer drop-down near the bottom right. If there are multiple instances of the component then this change will affect all of them, since "All views" at bottom is selected by default. If you only want this to apply to the selected instance then choose "From selection" instead.