freetype/lcd_filter 0, 1, 2, 16 1 FT Parameter that affects subpixel rendering (reference: http://freetype.sourceforge.net/freetype2/docs/reference/ft2-lcd_filtering.html#FT_LcdFilter ). gamma/xxx Non-negative decimal 1.0 All Correct colors by the given gamma value. The red, green and blue channels are corrected separately. For WIC renderer, the result gamma is the average of the three values. Color is