fix fractal flame colouring for 'pickier' implementations - use 2k textures for the framebuffer and use glFramebufferTexture2D on WebGL targets
fix fractal flame colouring for 'pickier' implementations - use 2k textures for the framebuffer and use glFramebufferTexture2D on WebGL targets

ef-gy/libefgy,ef-gy/libefgy