Journal of Data Processing Miloš Roganovic, Bratislav Predic, Dragan Stojanovic, Marko Kovaevic 13 4 2023 https://doi.org/10.6025/jdp/2023/13/4/103-110 https://www.dline.info/jdp/fulltext/v13n4/jdpv13n4_2.pdf In this paper, we present an innovative approach for visualizing geographic features using point, polyline complex polylines and polygon geometry in mobile GIS applications based on a developed XML styling language for defining custom styles and mapping layer subclasses to the specific style benefits including extending basic styles and applying a custom user-defined style for distinguishing objects belonging to the same layer visually separated objects for highlighting a specific attribute value for quickly identifying objects in time-critical situations in typical emergency situations various response teams all accessing different aspects of same geospatial data a flexible and customizable style definition language for general vector data for separate field services having custom visualisation of shared community spatial data.