fb: fix pixelated results on picture resizing/coloring on features wh… 

…ich use it

- turn on the filter for resizing
- use a Rect with the image dimesions and apply it
  for drawing the new colored or gray icons

this solves all issues we had on several fetures which allows
coloring/resizing
Merge pull request #1 from Somber73/patch-1

fb: fix pixelated results on picture resizing/coloring on features wh…