content: -- The fist version used `cmd` and `+`
    --repeat 5 times
      --delay 0.1
      --keystroke "+" using command down
    --end repeat
    --keystroke "b" using command down
  
  
  -- I tried menu click but is slower than keystroke
    --tell process "Evernote" 
      --click menu item "Bold" of menu 1 of menu item "Style" of menu "Format" of menu bar 1
    --end tell
  
  
  -- The fast way to increase font size is click the pop menu directly as following code
  
  set appName to "Evernote"
  
  tell application "System Events"
    set activeApp to name of application processes whose frontmost is true
    --Don't execute when active window is not Evernote
    if (activeApp as string) is not equal to appName then
        error number -128
    end if
  
    tell application process (appName as string)
      set isBold to value of ((checkbox 1 of splitter group 0 of splitter group 0 of window 1) whose description is "Bold") as boolean
      if isBold is false then
        -- Don's know why clicking checkbox not work here, use keystroke temporarily
        --click ((checkbox 1 of splitter group 0 of splitter group 0 of window 1) whose description is "Bold") as boolean
        keystroke "b" using command down
      end if
  
      click ((pop up button 1 of splitter group 0 of splitter group 0 of window 1) whose name is "Text Size")
      -- 9 is font size 36px
      -- 10 will be font size 48px
      click menu item 9 of menu of pop up button 2 of splitter group 0 of splitter group 0 of window 1
    end tell
  end tell
  