Thank you for responding!
Hi, again.
I just did what you told me about dragging kinetic_text_tags.rpy into my folder called game, well, I tried to test if it worked, but Renpy identifies it as something that doesn't exist, I think I didn't identify it because I did something wrong, but I don't know what exactly I did wrong.
What should I do? Here is the error:
I'm sorry, but an uncaught exception occurred.
While processing text tag {bt=30} in u'{bt=30} {bt}Pfff-{/bt}'..:
File "game/script.rpy", line 135, in script.
a"{bt=30} {bt}Pfff-{/bt}"
Exception: Unknown text tag u'bt=30'.