function fig_config(customConfig)
    % setFigureDefaults Sets default properties for all figures
    %
    % Usage:
    %   fig_config()             % Applies default settings
    %   fig_config(userConfig)   % Overrides defaults with userConfig

    %% Define default settings
    % In IEEETran, \textwidth is 7.1413 inches
    % - Use `\printinunitsof{in}\prntlen{\textwidth}`
    % - To output the \textwidth value in the generated document, 
    %   you need to use the `printlen` and `layouts` packages.
    textwidth_inches = 7.1413;

    % Set the figure width to 0.5 times \textwidth and define the aspect ratio (16:9 or 4:3)
    aspect = 16/9; % Aspect ratio (can also use 4/3)
    axes_width = 0.75;
    axes_hight = 0.75;
    axes_pos = [0.15, 0.15, axes_width, axes_hight];
    fig_width = 0.5 * textwidth_inches;
    fig_hight = (fig_width * axes_width / aspect) / axes_hight;

    defaultConfig = struct( ...
        'defaultFigureUnits', 'inches', ...
        'defaultFigurePosition', [0, 0, fig_width, fig_hight], ...
        'defaultAxesPosition', axes_pos, ...
        'defaultFigurePaperPositionMode', 'manual', ...
        'defaultFigurePaperUnits', 'inches', ...
        'defaultFigurePaperPosition', [0, 0, fig_width, fig_hight], ...
        'defaultFigurePaperSize', [fig_width, fig_hight], ...
        'defaultLineLineWidth', 0.5, ... % -- Line and marker
        'defaultLineMarkerSize', 3, ...
        'defaultAxesFontName', 'Times New Roman', ... % -- Fonts
        'defaultTextFontName', 'Times New Roman', ...
        'defaultLegendFontName', 'Times New Roman', ...
        'defaultAxesLabelFontSizeMultiplier', 1.15, ...
        'defaultAxesFontSize', 7, ...
        'defaultTextFontSize', 10, ...
        'defaultLegendFontSize', 7, ...
        'defaultTextInterpreter', 'latex', ... % -- Interpreter
        'defaultAxesTickLabelInterpreter', 'latex', ...
        'defaultLegendInterpreter', 'latex', ...
        'defaultAxesGridColor', [0.15, 0.15, 0.15], ... % -- Grid
        'defaultAxesGridAlpha', 0.25, ...
        'defaultAxesGridLineStyle', ':', ...
        'defaultAxesGridLineWidth', 0.5, ...
        'defaultArrowshapeHeadWidth', 6, ... % -- Arrow
        'defaultArrowshapeHeadLength', 6 ...
    );

    % Merge user config with defaults
    if nargin == 1 && ~isempty(customConfig)
        userFields = fieldnames(customConfig);
        for i = 1:length(userFields)
            defaultConfig.(userFields{i}) = customConfig.(userFields{i});
        end
    end

    % Iterate and set properties
    fields = fieldnames(defaultConfig);
    for i = 1:length(fields)
        try
            set(groot, fields{i}, defaultConfig.(fields{i}));
        catch ME
            errorStruct.message = sprintf("%s\nUse get(groot, 'factory') " + ...
                "to get all the available parameters.", ME.message);
            errorStruct.identifier = ME.identifier;
            errorStruct.stack = ME.stack;
            error(errorStruct)
        end
    end
end