- slider on maps
- historical/modern maps switch
- add collabs page authentification and settings
- implement log scale and add button to switch
- improve descriptive statistics to show data on selected indicators
- create legend for chart and map
- put metadata from Dataverse in separate tab in Excel file
- switch to color pallete/greyscale visualization
- keep position of tab after selection
- put NA on map for countries with missing data (all countries should be presented on map)
- note on charts with limitation
- add progress bar in data download
- add copyrights for maps
- change units on real units from datasets
- all colors should be consistent