diff --git a/NeoBitmapFile-object-API.md b/NeoBitmapFile-object-API.md
index 63e331a..24859c2 100644
--- a/NeoBitmapFile-object-API.md
+++ b/NeoBitmapFile-object-API.md
@@ -34,17 +34,42 @@ This will return the color of the given pixel.
 > * _y_ - the vertical pixel position.  
 > * _\<return\>_, a color object, RgbColor or RgbwColor.
 
-### void Blt(NeoBufferContext destBuffer, uint16_t indexPixel, int16_t xSrc, int16_t ySrc, int16_t wSrc)
-This will render this image to the destBuffer at indexPixel.  This is a linear rendering, not a 2D image rendering.  
+### void Blt(NeoBufferContext destBuffer, uint16_t indexPixel, int16_t xSrc, int16_t ySrc, int16_t wSrc)  
+Bit-aligned BLock Transfer.  
+This will transfer this image to the destBuffer at indexPixel.  This is a linear transfer, not a 2D image rendering.  
 > * _destBuffer_ - Another NeoBuffer or NeoPixelBus.  
 > * _indexPixel_ - the location to start the render at.
 > * _xSrc_ - the horizontal location in the bitmap to render from.
 > * _ySrc_ - the vertical location in the bitmap to render from.
 > * _wSrc_ - the number of pixels to render.
 
-### void Blt(NeoBufferContext destBuffer, int16_t xDest, int16_t yDest, int16_t xSrc, int16_t ySrc, int16_t wSrc, int16_t hSrc, LayoutMapCallback layoutMap)
-This will render part of this image to the destBuffer at given location. This is a 2d image rendering.  
+### void Render\<SHADER\>(NeoBufferContext<T_COLOR_FEATURE> destBuffer, SHADER& shader, uint16_t indexPixel, int16_t xSrc, int16_t ySrc, int16_t wSrc) 
+This will render this image to the destBuffer at indexPixel using the given shader.  This is a linear transfer, not a 2D image rendering.  
+> * _SHADER_ - a shader class type that matches the instance that will be passed
 > * _destBuffer_ - Another NeoBuffer or NeoPixelBus.  
+> * _shader_ - A shader class instance that defines how each pixel is modified as it is transferred  
+> * _indexPixel_ - the location to start the render at.
+> * _xSrc_ - the horizontal location in the bitmap to render from.
+> * _ySrc_ - the vertical location in the bitmap to render from.
+> * _wSrc_ - the number of pixels to render.  
+
+### void Blt(NeoBufferContext destBuffer, int16_t xDest, int16_t yDest, int16_t xSrc, int16_t ySrc, int16_t wSrc, int16_t hSrc, LayoutMapCallback layoutMap)  
+Bit-aligned BLock Transfer.  
+This will transfer part of this image to the destBuffer at given location. This is a 2d image rendering.  
+> * _destBuffer_ - Another NeoBuffer or NeoPixelBus.  
+> * _xDest_- the upper left location in the destination to render to  
+> * _yDest_ - the upper left location in the destination to render to  
+> * _xSrc_ - the upper left location in the source to render from  
+> * _ySrc_ - the upper left location in the source to render from  
+> * _wSrc_ - the width to render  
+> * _hSrc_ - the height to render  
+> * _layoutMap_ - a layoutMap callback that implements the destinations mapping routine (see below)
+
+### void Render\<SHADER\>(NeoBufferContext\<T_COLOR_FEATURE\> destBuffer, SHADER& shader, int16_t xDest, int16_t yDest, int16_t xSrc, int16_t ySrc, int16_t wSrc, int16_t hSrc, LayoutMapCallback layoutMap)  
+This will render part of this image to the destBuffer at given location using the provided shader. This is a 2d image rendering.  
+> * _SHADER_ - a shader class type that matches the instance that will be passed
+> * _destBuffer_ - Another NeoBuffer or NeoPixelBus.  
+> * _shader_ - A shader class instance that defines how each pixel is modified as it is transferred
 > * _xDest_- the upper left location in the destination to render to  
 > * _yDest_ - the upper left location in the destination to render to  
 > * _xSrc_ - the upper left location in the source to render from