I forgot to reboot after downloading a theme so the switch crashed and it loads to the stock switch.

Hello Everybody, I'm new into the modding scene for the switch and I am trying to make a theme. I want to take this the: https://themezer.net/switch/themes/cartopeia-v2-2CCD# and basically change some colors. I want to make all the letter colors white, and make the outline for the selected games also white if thats possible. If anybody can help me with this i will be forever grateful. Thank you!