### Compilation failed:

error: 6: 'main' parameter must be 'vec4', 'float4', or 'half4'
error: 7: 'main' parameter must be 'vec4', 'float4', or 'half4'
error: 8: 'main' parameter must be 'vec4', 'float4', or 'half4'
error: 8: unknown identifier 'color'
error: 9: 'main' parameter must be 'vec4', 'float4', or 'half4'
error: 9: unknown identifier 'color'
6 errors