Autodesk Forge Viewer modifies default render settin

the default rendering style of viewer and the rendering style in the settings are not very suitable for my needs. Is there any way to set the default rendering effect of viewer? For example, the following two pictures, the first is the default rendering effect of Autodesk Forge Viewer, and the second is the rendering effect of other software in the browser. I want to set the default effect of Autodesk Forge Viewer to be the same as the second one. How should I set it?
:Autodesk Forge Viewer

Viewer autodesk-forge forge

Mar.09,2021

found the relevant code in viewer, where you can modify the settings or customize
{

        name: "Sharp Highlights", // localized in viewer-environments.loc.json
        path: "SharpHighlights",
        type: "logluv",
        tonemap: 1,
        // illuminance currently is not used elsewhere in LMV, its effect is folded into E_bias.
        //illuminance: 1000.0,
        E_bias: -9.0, // EV 9.526, 1000.0 lux (target)
        directLightColor: [0.5, 0.5, 0.5],
        ambientColor: [0.25 / 8, 0.25 / 8, 0.25 / 8],
        lightMultiplier: 0.0,
        lightDirection: [0.5, -0.2, -0.06],
        bgColorGradient: bg["Photo Booth"],
        darkerFade: true,
        rotation: 0.0
    },

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