Blinking text

syntax 1 : {up text-blink}content{/up text-blink} // single flash
syntax 2 : {up text-blink=color:red}content{/up text-blink} // alternating style
syntax 3 : {up text-blink=prefset}content{/up text-blink} // set of options in prefs.ini
syntax 4 : {up text-blink=css_class}content{/up text-blink} // classe CSS

🟩 upbtn-makefile PREFS.INI :
red-blue : text_blink=color:red;background:orange | style=color:blue