adjustTypographicGlyphs( adjustmentObject ){

		for ( const char in adjustmentObject ) {

			const typographicGlyph = this.getTypographicGlyph( char );
			const glyphAdjustment = adjustmentObject[ char ];
			for ( const propertyToAdjust in glyphAdjustment ) {

				typographicGlyph["_"+propertyToAdjust] = adjustmentObject[char][propertyToAdjust];

			}

		}

	}
Perform some changes on the character description of this font
@param {Object.<string,Object.<string,number|string>>} adjustmentObject