Controls the non-data display to be consistent with our style guide
theme_gla( gla_theme = "default", x_axis_title = FALSE, y_axis_title = FALSE, xgridlines = FALSE, legend = TRUE, base_size = 14, free_y_facets = FALSE, y_label_length = 100 )
| gla_theme | Either 'default' or 'inverse', Default: 'default'  | 
    
|---|---|
| x_axis_title | boolean, If TRUE an x-axis label/title can be added, Default: FALSE  | 
    
| y_axis_title | boolean, If TRUE a y-axis label/title can be added, Default: FALSE  | 
    
| xgridlines | boolean, If TRUE, theme will include gridlines on the x-axis, Default: FALSE  | 
    
| legend | boolean, If TRUE, theme will include a legend at the top left of the plot, Default: TRUE  | 
    
| base_size | base font size, Default: 14  | 
    
| free_y_facets | Use if faceting plot with free y scales. Adjusts position of y axis labels, Default: FALSE  | 
    
| y_label_length | length of lines under y-axis labels. For most plots this won't need changing. It will need adjusting for faceted plots or if labels are particularly long. As a rough guide this should be set approximately equal to 96 * strwidth(y_labels, unit = "inches") with default base_size.  |