Mark
Symbolizer Type
Mark represents the visualization of Point data.
Point is a simple geometry type, even though it has position as a coordinates attached to it, we can certainly style it using various ways using Geostyler
UI of styler
Once data is loaded, Geostyler automatically detects the geometry type and tries to set it up, click in column of paint bucket
Mark supports various properties to create perfect styling for Points.

For each change in the properties, you can see preview

Symbols
Mark supports various symbol lists right out of the box such as circle,square,triangle,star,cross,x , it also provides shapes such as backslash , carrow, dot, horline, oarrow, plus, slash, times, vertline.
Once you select these, you can check the preview to see how it looks


Radius
Radius is the general term used to define the size of the Mark , you can set it up as per convenience.
Fill-color
Fill-color allows users to select color for filling the Mark . You can select a color by following methods:
-
Selection from Color Panel
- Hex ID
- RGB
- Selection from predefined colors

Opacity
Opacity defines the transparency of the Mark. Values can be set between 0 - 1, where 0 means transparent and 1 means opaque.

Fill-Opacity
Using Fill-opacity, users can specify the transparency of the color used in Fill-color. Users can create a combination of Fill-opacity and Stroke-opacity
Stroke-Color
This property defines the color of the border of the Mark. Selection of color works the same way as Fill-color .
Stroke-Opacity
This property is used to define transparency of the border. Users can set different opacity for fill and stroke .
Values can be set between 0 - 1, where 0 means transparent and 1 means opaque
Stroke-Width
Stroke-Width is used to set thickness of the border.
Rotation
Using Rotation, users can rotate the symbol at given value in degrees.