Hmm..,
That's not the nav pane. Its called "Status pane" and in your case, its called "Thin Status Pane". From the resources view, select Areas->Status.
Now here you can see 4 status panes. Select the "thin Status Pane". If you check carefully you can see "
Preview Screen not available for this selection" written in red in the bottom of Carbide UI. Here is the problem. This is not visible in carbide UI. For some reason the developers decided not to keep it.
Now whichever places you see such un-previewable items, it will show in the default color in your phone.
Coming back to the problem,
Right click the "Thin Status Pane" and select "Convert and Edit in bitmap Editor". a Confirmation will come up asking the resolution. Here remove the checkmark on the "Preserve mask". Click ok. The svg image will be converted to bitmap and will be opened in the bitmap editor which you have set, ie, Photoshop, paintshop etc.
Now in the bitmap editor, don't do any changes, just save it and exit. Switch back to Carbide UI. U can see here, in the layers view that the image (BMP, 240x27) is there alongwith a 8 bit Mask image of the same dimension.
This masking is a very important concept in Carbide UI to set transparency of any layer/image.
Open the mask in the bitmap editor. Amount of black in the mask determines the transparency; the blacker the mask is, the more transparent the image will be. In our case we have to make it fully transparent, fill it with complete black color.
Save and exit.
Now you will not see the white pane on the top.
Similarly, there is another "Status Area Background(Landscape)Right to Left Orientation", which you need to make transparent. Here proceed as I described in the previous post.
Note: This single image masking won't work in S60 3rd FP1 phones like N95. Here you need to split the "Status Pane" in to 9 piece bitmap images and apply masking to each of them.
BTW, which phone do you have?
I am also gradually learning to use Carbide UI... At some places I too get confused.
So much typing... Say if it worked.