Uncaught exception: [openfl.display.Shader] ERROR: Error compiling fragment shader
ERROR: 0:58: '>' does not operate on 'float' and 'int'

#ifdef GL_ES
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif
#endif

// <large section removed for brevity>

        uniform bool _enabled;
        uniform float inSize;
        uniform float outSize;
        uniform vec4 inColor;
        uniform vec4 outColor;

        bool outline(vec2 coord, float size)
        {
            float w = size / openfl_TextureSize.x;
            float h = size / openfl_TextureSize.y;
            
            return size > 0
            &&  ( flixel_texture2D(bitmap, vec2(coord.x + w, coord.y)).a != 0.0
                || flixel_texture2D(bitmap, vec2(coord.x - w, coord.y)).a != 0.0
                || flixel_texture2D(bitmap, vec2(coord.x, coord.y + h)).a != 0.0
                || flixel_texture2D(bitmap, vec2(coord.x, coord.y - h)).a != 0.0
                );
        }
        
        void main()
        {
            vec4 color = flixel_texture2D(bitmap, openfl_TextureCoordv);
            if (color.a == 0.0 && _enabled)
            {
                if (outline(openfl_TextureCoordv, inSize))
                    color = inColor;
                else if (outline(openfl_TextureCoordv, outSize))
                    color = outColor;
            }
            gl_FragColor = color;
        }

Uncaught exception: [openfl.display.Shader] ERROR: Error compiling fragment shader: MyShader
LINE:            return size > 0
ERROR: 0:58: '>' does not operate on 'float' and 'int'