diff --git a/src/renderer/src/renderer/collections.ts b/src/renderer/src/renderer/collections.ts
index 6ce8e74c..f89b649b 100644
--- a/src/renderer/src/renderer/collections.ts
+++ b/src/renderer/src/renderer/collections.ts
@@ -4,7 +4,6 @@ import * as Symbols from './symbols'
 import { glFloatSize } from './constants'
 import { FeatureTypeIdentifier, Binary } from './types'
 import { MacroRenderer, StepAndRepeatRenderer } from './layer'
-import onChange from 'on-change'
 
 import PadFrag from '../shaders/src/Pad.frag'
 import PadVert from '../shaders/src/Pad.vert'
@@ -1001,10 +1000,10 @@ export class SymbolShaderCollection {
       return this
     }
     const symbols = Array.from(this.symbols.values()).map((symbol, i) => {
-      // symbol.sym_num = i
-      onChange.target(symbol).sym_num.value = i
+      symbol.sym_num.value = i
       return this.getSymbolParameters(symbol)
     })
+    // TODO: make symbols texture fit to max texture size
     this.texture({
       width: SYMBOL_PARAMETERS.length,
       height: symbols.length,
@@ -1012,7 +1011,6 @@ export class SymbolShaderCollection {
       format: 'luminance',
       data: symbols
     })
-    // console.log('refreshing symbols', this.symbols.size)
     return this
   }
 }
diff --git a/src/renderer/src/renderer/layer.ts b/src/renderer/src/renderer/layer.ts
index fd627de8..38becaf4 100644
--- a/src/renderer/src/renderer/layer.ts
+++ b/src/renderer/src/renderer/layer.ts
@@ -2,7 +2,6 @@ import REGL from 'regl'
 import { vec2, vec3, mat3 } from 'gl-matrix'
 import * as Shapes from './shapes'
 import * as Symbols from './symbols'
-// import onChange from 'on-change'
 import { Binary, Transform, Units, BoundingBox } from './types'
 import {
   ArcAttachments,
diff --git a/src/renderer/src/shaders/src/Arc.vert b/src/renderer/src/shaders/src/Arc.vert
index ab3c2f47..7c22c5bb 100644
--- a/src/renderer/src/shaders/src/Arc.vert
+++ b/src/renderer/src/shaders/src/Arc.vert
@@ -75,9 +75,9 @@ void main() {
 
   float Aspect = u_Resolution.y / u_Resolution.x;
 
-  float t_Outer_Dia = pullSymbolParameter(u_Parameters.outer_dia, int(v_SymNum));
-  float t_Width = pullSymbolParameter(u_Parameters.width, int(v_SymNum));
-  float t_Height = pullSymbolParameter(u_Parameters.height, int(v_SymNum));
+  float t_Outer_Dia = pullSymbolParameter(u_Parameters.outer_dia, int(a_SymNum));
+  float t_Width = pullSymbolParameter(u_Parameters.width, int(a_SymNum));
+  float t_Height = pullSymbolParameter(u_Parameters.height, int(a_SymNum));
   float OD = max(t_Outer_Dia, max(t_Width, t_Height));
 
   vec2 ShapeSize = vec2(OD, OD) + vec2(pixel_size, pixel_size);