Chessbase Fritz (Eng): chess pieces by chessskins

/* ==UserStyle==
@name           Chessbase Fritz (Eng): chess pieces
@author         ChessSkins
@namespace      ChessSkins
@homepageURL    https://www.chess.com/blog/ChessSkins
@description    `Multicolor Chessbase svg pieces for chess.com.`
@version        1.0.4
@license        NO-REDISTRIBUTION
@preprocessor   stylus

@var    select      setColors    "Preset"{
            "Beige*": "beigeBlack",
            "White": "blackWhite",
            "Custom": "custom",
        }


@var    color    wColor  "Custom color"    #ffe9ac
@var    range   gradDeg  "Shading"   [30,0,100,5,"%"]

==/UserStyle== */
@-moz-document domain("chess.com"),
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    blightDeg = gradDeg - 4%;
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    }else{
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    if setColors=="beigeBlack" {        
        wColor=#f8f0cc;
    }
    if setColors=="blackWhite" {
        wColor=#f8f8f8;
    }

    bColor=hsla(bColor);
    wColor=hsla(wColor);
    wShade=hsla(shade(wColor, gradDeg));
    
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