Bug 1465: Region currently simply bloats a given texture to its region AABBox, which renders textures with the wrong aspect ratio. Add facility to program the texture-coordinates to either letter-box or scaled-up (and cut) true aspect-ratio. Default shall be zoom (scale-up and cut), but user shall be able to set a flag in the Region for letter-box. Have the shader clip texture coordinates properly, best w/o branching to soothe performance. See functions.glsl +++ Bug 1466: Current color mix: texture * color_channel * color_static is useless in GraphUI. color_static shall modulate the texture, which works. But in case of color_channel (attribute/varying) we want it to be mixed so it can become the more dominant color for e.g. a border. Desired is: color = vec4( mix( tex.rgb * gcu_ColorStatic.rgb, gcv_Color.rgb, gcv_Color.a ), mix( tex.a * gcu_ColorStatic.a, 1, gcv_Color.a) );