fix shaders format

data/shaders/stroke-instanced.glsl

@@ -1,31 +1,36 @@
 [[vertex]]
+
 in vec4 pos;
 in vec2 uvs;
 in mat4 a_mvp;
 in float a_flow;
 out vec3 uv;
 out float alpha;
+
 void main()
 {
-   uv = vec3(uvs, pos.w);
-   alpha = a_flow;
-   gl_Position = a_mvp * vec4(pos.xyz, 1.0);
+    uv = vec3(uvs, pos.w);
+    alpha = a_flow;
+    gl_Position = a_mvp * vec4(pos.xyz, 1.0);
 }
 
 [[fragment]]
+
 uniform mediump sampler2D tex;
 uniform mediump sampler2D tex_pattern;
 uniform mediump vec4 col;
 uniform mediump vec2 resolution;
 uniform mediump vec2 pattern_offset;
 uniform mediump float pattern_alpha;
+
 in mediump float alpha;
 in mediump vec3 uv;
 out mediump vec4 frag;
+
 void main()
 {
-   mediump vec2 uv2 = gl_FragCoord.st / resolution;
-   mediump float pattern = 1.0 - (texture(tex_pattern, (uv2+pattern_offset)).r * 0.9) * pattern_alpha;
-   mediump float a = (1.0 - texture(tex, uv.xy).r) * alpha * pattern;
-   frag = vec4(col.rgb, a);
+    mediump vec2 uv2 = gl_FragCoord.st / resolution;
+    mediump float pattern = 1.0 - (texture(tex_pattern, (uv2+pattern_offset)).r * 0.9) * pattern_alpha;
+    mediump float a = (1.0 - texture(tex, uv.xy).r) * alpha * pattern;
+    frag = vec4(col.rgb, a);
 }