local themes = {
    standard = {
        color_calendar_graph_day_L4_bg = '#216e39',
        color_calendar_graph_day_L3_bg = '#30a14e',
        color_calendar_graph_day_L2_bg = '#40c463',
        color_calendar_graph_day_L1_bg = '#9be9a8',
        color_calendar_graph_day_bg = '#ebedf0'
    },
    classic = {
        color_calendar_graph_day_L4_bg = '#196127',
        color_calendar_graph_day_L3_bg = '#239a3b',
        color_calendar_graph_day_L2_bg = '#7bc96f',
        color_calendar_graph_day_L1_bg = '#c6e48b',
        color_calendar_graph_day_bg = '#ebedf0',
    },
    teal = {
        color_calendar_graph_day_L4_bg = '#458B74',
        color_calendar_graph_day_L3_bg = '#66CDAA',
        color_calendar_graph_day_L2_bg = '#76EEC6',
        color_calendar_graph_day_L1_bg = '#7FFFD4',
        color_calendar_graph_day_bg = '#ebedf0',
    },
    leftpad = {
        color_calendar_graph_day_L4_bg = '#F6F6F6',
        color_calendar_graph_day_L3_bg = '#DDDDDD',
        color_calendar_graph_day_L2_bg = '#A5A5A5',
        color_calendar_graph_day_L1_bg = '#646464',
        color_calendar_graph_day_bg = '#2F2F2F',
    },
    dracula = {
        color_calendar_graph_day_L4_bg = '#ff79c6',
        color_calendar_graph_day_L3_bg = '#bd93f9',
        color_calendar_graph_day_L2_bg = '#6272a4',
        color_calendar_graph_day_L1_bg = '#44475a',
        color_calendar_graph_day_bg = '#282a36'
    },
    pink = {
        color_calendar_graph_day_L4_bg = '#61185f',
        color_calendar_graph_day_L3_bg = '#a74aa8',
        color_calendar_graph_day_L2_bg = '#ca5bcc',
        color_calendar_graph_day_L1_bg = '#e48bdc',
        color_calendar_graph_day_bg = '#ebedf0',
    }
}

return themes