At first we need to create five new textures. These textures will be used to render different materials that the bricks texture consists of.

We use the flexible Generator/Perlin Noise function to create the materials with presets, that already come with Texture Maker. These are the Bricks, the Soil, the Marble and the Green Stone presets. The last preset doesn't come with v2.4, you can download it here. Copy the file to the .\Presets subdirectory of your Texture Maker Installation.
For each material select the corresponding preset and apply it to one of the empty textures.

Now we create our structure texture. That is the bricks pattern. Select the Generator/Bricks function and load the default preset by pressing the Reset button. After this set the Amplify Value to 200%, which makes the edges sharper. Click on the remaining empty texture to apply the function.

Our bricks texture looks too perfect. To apply ageing effects, the Noise/Erosion proves to be useful. Select the function along with its Shelly preset and apply it, say three times, to the texture.

The green stone simulates organic impurification and is mixed with the red bricks material. Our marble texture defines the structure of the impurification. Open the Advanced Multi-Texture Mixer to combine the bricks material with the green stone.
Click on one of the empty sliders and choose Texture from Editor. Then select the green stone texture. Do the same with another slider and select the red bricks material. Load the marble texture as the Mixing Map. Now shift the sliders until the result looks similar to the image below. After this click the Render button.

Use the Quick Texture Mixer to apply an emboss effect to the texture that you just rendered. It can be accessed on every texture window. Drag it from the source texture (our marble texture) to the green stone/red brick combination and drop it there. Select the Emboss Medium mode.

Open the Advanced Multi-Texture Mixer again. This time load the Soil material and our embossed texture. Choose the bricks pattern texture as mixing map. Move the sliders to positions so that the red texture is placed at the bricks and the soil texture is drawn in the space between. Click the Render button.

Now it's time for the Advanced Shader. Select the bricks structure texture as Height Map and the just rendered red/green/soil combination as Surface. Make your configuration match the values in the image below or use settings that satisfy you. The light colors are RGB(255,255,255) for light source and RGB(128,128,128) for the ambient light. Make sure that you have Reflectivity set to zero, because we don't have any reflection map set. After you've pressed the Render button your bricks texture is finished. If you want, you can still add some tears and erosion to make it look more aged.