library(shiny)
icon("calendar") # standard icon
icon("calendar", "fa-3x") # 3x normal size
# add an icon to a submit button
submitButton("Update View", icon = icon("refresh"))
navbarPage("App Title",
tabPanel("Plot", icon = icon("bar-chart-o")),
tabPanel("Summary", icon = icon("list-alt")),
tabPanel("Table", icon = icon("table"))
)
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