diff --git a/crt/shaders/crt-potato/shader-files/crt-potato.glsl b/crt/shaders/crt-potato/shader-files/crt-potato.glsl
deleted file mode 100644
index 4783533..0000000
--- a/crt/shaders/crt-potato/shader-files/crt-potato.glsl
+++ /dev/null
@@ -1,141 +0,0 @@
-///////////////////////////////////////////////////////////////////////////
-//                                                                       //
-// Copyright (C) 2017 - Brad Parker                                      //
-//                                                                       //
-// This program is free software: you can redistribute it and/or modify  //
-// it under the terms of the GNU General Public License as published by  //
-// the Free Software Foundation, either version 3 of the License, or     //
-// (at your option) any later version.                                   //
-//                                                                       //
-// This program is distributed in the hope that it will be useful,       //
-// but WITHOUT ANY WARRANTY; without even the implied warranty of        //
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
-// GNU General Public License for more details.                          //
-//                                                                       //
-// You should have received a copy of the GNU General Public License     //
-// along with this program.  If not, see <http://www.gnu.org/licenses/>. //
-//                                                                       //
-///////////////////////////////////////////////////////////////////////////
-
-#if defined(VERTEX)
-////////////////////////////////////////////////////////////////////////////////
-// Vertex shader                                                              //
-////////////////////////////////////////////////////////////////////////////////
-
-#if __VERSION__ >= 130
-#define COMPAT_VARYING out
-#define COMPAT_ATTRIBUTE in
-#define COMPAT_TEXTURE texture
-#else
-#define COMPAT_VARYING varying 
-#define COMPAT_ATTRIBUTE attribute 
-#define COMPAT_TEXTURE texture2D
-#endif
-
-#ifdef GL_ES
-#define COMPAT_PRECISION mediump
-#else
-#define COMPAT_PRECISION
-#endif
-
-COMPAT_ATTRIBUTE vec4 VertexCoord;
-COMPAT_ATTRIBUTE vec4 COLOR;
-COMPAT_ATTRIBUTE vec4 TexCoord;
-COMPAT_VARYING vec4 COL0;
-COMPAT_VARYING vec4 TEX0;
-COMPAT_VARYING vec2 dot_size;
-COMPAT_VARYING vec2 one_texel;
-
-uniform mat4 MVPMatrix;
-uniform COMPAT_PRECISION int FrameDirection;
-uniform COMPAT_PRECISION int FrameCount;
-uniform COMPAT_PRECISION vec2 OutputSize;
-uniform COMPAT_PRECISION vec2 TextureSize;
-uniform COMPAT_PRECISION vec2 InputSize;
-
-////////////////////////////////////////////////////////////////////////////////
-// Vertex definitions                                                         //
-////////////////////////////////////////////////////////////////////////////////
-
-#define vTexCoord TEX0.xy
-#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
-#define outsize vec4(OutputSize, 1.0 / OutputSize)
-
-// Largest integer scale of input video that will fit in the current output (y axis would typically be limiting on widescreens)
-#define video_scale         floor(outsize.y * SourceSize.w)
-
-// Size of the scaled video
-//#define scaled_video_out    (SourceSize.xy * vec2(video_scale))
-
-//it's... half a pixel
-#define half_pixel          (vec2(0.5) * outsize.zw)   
-
-void main()
-{
-	vec2 scaled_video_out = (InputSize.xy * vec2(video_scale));
-    // Remaps position to integer scaled output
-    gl_Position = MVPMatrix * VertexCoord;// / vec4( vec2(outsize.xy / scaled_video_out), 1.0, 1.0 );
-    TEX0.xy = TexCoord.xy;// + vec2(0.0, half_pixel);
-    dot_size = SourceSize.zw;
-    one_texel = 1.0 / (SourceSize.xy * video_scale);
-}
-
-#elif defined(FRAGMENT)
-////////////////////////////////////////////////////////////////////////////////
-// Fragment shader                                                            //
-////////////////////////////////////////////////////////////////////////////////
-
-#if __VERSION__ >= 130
-#define COMPAT_VARYING in
-#define COMPAT_TEXTURE texture
-out vec4 FragColor;
-#else
-#define COMPAT_VARYING varying
-#define FragColor gl_FragColor
-#define COMPAT_TEXTURE texture2D
-#endif
-
-#ifdef GL_ES
-#ifdef GL_FRAGMENT_PRECISION_HIGH
-precision highp float;
-#else
-precision mediump float;
-#endif
-#define COMPAT_PRECISION mediump
-#else
-#define COMPAT_PRECISION
-#endif
-
-uniform COMPAT_PRECISION int FrameDirection;
-uniform COMPAT_PRECISION int FrameCount;
-uniform COMPAT_PRECISION vec2 OutputSize;
-uniform COMPAT_PRECISION vec2 TextureSize;
-uniform COMPAT_PRECISION vec2 InputSize;
-uniform sampler2D Texture;
-uniform sampler2D MASK;
-
-COMPAT_VARYING vec4 TEX0;
-COMPAT_VARYING vec2 dot_size;
-COMPAT_VARYING vec2 one_texel;
-
-// compatibility #defines
-#define Source Texture
-#define vTexCoord TEX0.xy
-
-#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
-#define outsize vec4(OutputSize, 1.0 / OutputSize)
-
-#define maskSize vec2(2., floor(outsize.y / InputSize.y + 0.000001))
-
-////////////////////////////////////////////////////////////////////////////////
-//fragment definitions                                                        //
-////////////////////////////////////////////////////////////////////////////////
-
-#define curr_rgb  COMPAT_TEXTURE(Source, vTexCoord)
-#define mask_rgb  COMPAT_TEXTURE(MASK, fract(gl_FragCoord.xy / maskSize))
-
-void main()
-{
-    FragColor = mask_rgb * curr_rgb;
-} 
-#endif