Hey guys/girls need a bit of help

I'm getting a zr td 100 on Saturday in yellow, already got subtle mods planned, but one mod Ibe had planned for some time is installing diode LEDs into roof lining (night star light effect). I've got 150 (100 white 50 discreet blue) diodes at the moment I'm just confused on what rating of resistor I need to use for them, I've had a quick look on google for advice but "needle in a hay stack" comes to mind. Can anyone help me out on this please

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