SRB2-Shader-Guide.md

@@ -38,7 +38,7 @@ The shader source consists of code written in the GLSL language. This guide assu
 The shaders have access to the following uniform variables:
 
 - `vec4 poly_color`: This is a RGBA color, that is always white. The alpha value is set depending on the translucency of the surface.
-- `vec4 tint_color`: The color of the colormap (linedef 606) applied to the surface. `0,0,0,0` for no colormap.
+- `vec4 tint_color`: The color of the colormap (linedef type 606) applied to the surface. `0,0,0,0` for no colormap.
 - `vec4 fade_color`: The color that light fades into. It is black by default and can be modified by the colormap linedef special.
 - `float lighting`: The light level of the surface. Ranges from 0 to 255.
 - `float fade_start`: The start of the light fade in the colormap. Ranges from 0 to 31.