```json
{
    "title": {
        "font_size": 26,
        "color": "#0A3D62",
        "bold": true,
        "align": "center"
    },
    "heading1": {
        "font_size": 20,
        "color": "#1B263B",
        "bold": true,
        "align": "left"
    },
    "heading2": {
        "font_size": 16,
        "color": "#3A506B",
        "bold": true,
        "align": "left"
    },
    "paragraph": {
        "font_size": 12,
        "color": "#1B263B",
        "bold": false,
        "align": "justify"
    },
    "table_header": {
        "background": "#1B263B",
        "text_color": "#FFFFFF",
        "bold": true,
        "align": "center"
    },
    "table_cell": {
        "background": "#F0F4F8",
        "text_color": "#1B263B",
        "bold": false,
        "align": "left"
    },
    "table_border": {
        "style": "all_borders",
        "color": "#1B263B",
        "thickness": "medium"
    },
    "bullet_list": {
        "font_size": 12,
        "color": "#1B263B",
        "indent": 25
    },
    "code_block": {
        "font": "Courier New",
        "font_size": 11,
        "color": "#1B263B",
        "background": "#E8E8E8"
    }
}
```