fix: default project src inputs

default/inc_src.glsl

@@ -8,8 +8,8 @@
 uniform int iDemo;
 
 uniform sampler2D iTex0;
-uniform sampler2D iTex5;
-uniform sampler2D iTex6;
+uniform sampler2D iTex3;
+uniform sampler2D iTex4;
 
 subroutine vec4 src_stage_sub(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3);
 
@@ -298,7 +298,7 @@ subroutine ( src_stage_sub ) vec4 src_6(vec2 vUV, int seed, vec3 b1, vec2 f1, ve
         return src_2(vUV, seed, b1, f1, b2, f2, b3, f3);
     }
 
-    return src_thru(vUV, iTex5, seed, b1, f1, b2, f2, b3, f3);
+    return src_thru(vUV, iTex3, seed, b1, f1, b2, f2, b3, f3);
 }
 
 #include inc_cp437.glsl
@@ -462,7 +462,7 @@ subroutine ( src_stage_sub ) vec4 src_11(vec2 vUV, int seed, vec3 b1, vec2 f1, v
         return src_3(vUV, seed, b1, f1, b2, f2, b3, f3);
     }
 
-    return src_thru(vUV, iTex6, seed, b1, f1, b2, f2, b3, f3);
+    return src_thru(vUV, iTex4, seed, b1, f1, b2, f2, b3, f3);
 }
 
 // SRC 12 : Scales