export declare const apply_marker_color = "\n\n#if defined(dColorMarker)\n    if (marker > 0.0) {\n        if ((uMarkerPriority == 1 && marker != 2.0) || (uMarkerPriority != 1 && marker == 1.0)) {\n            gl_FragColor.rgb = mix(gl_FragColor.rgb, uHighlightColor, uHighlightStrength);\n            gl_FragColor.a = max(gl_FragColor.a, uHighlightStrength * 0.002); // for direct-volume rendering\n        } else {\n            gl_FragColor.rgb = mix(gl_FragColor.rgb, uSelectColor, uSelectStrength);\n            gl_FragColor.a = max(gl_FragColor.a, uSelectStrength * 0.002); // for direct-volume rendering\n        }\n    } else if (uMarkerAverage > 0.0) {\n        gl_FragColor.rgb = mix(gl_FragColor.rgb, uDimColor, uDimStrength);\n        gl_FragColor.a = max(gl_FragColor.a, uDimStrength * 0.002); // for direct-volume rendering\n    }\n#endif\n";