### Compilation failed:

error: 6: 'main' parameters must be (float2, (vec4|float4|half4)?)
error: 7: 'main' parameters must be (float2, (vec4|float4|half4)?)
error: 7: unknown identifier 'color'
error: 8: 'main' parameters must be (float2, (vec4|float4|half4)?)
error: 8: unknown identifier 'color'
error: 9: 'main' parameters must be (float2, (vec4|float4|half4)?)
error: 9: unknown identifier 'color'
7 errors