Issue with Button Colors

Hey everyone, I’m super new to Ionic. Just playing around with a sample application. I made a blank application using npm, and everything was dark themed. I’m trying to make a light-themed application so I deleted the content in the variables.scss file and replaced it with a custom set of rules for custom colors. When I changed my background to white, I get this for my radio buttons and date and time pickers too. The buttons that usually show up for confirming a selection or canceling aren’t there. Is there any way I could get some help with this? Much Appreciated!

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Edit: If there is a default light theme, I would love to try that out instead of remaking all these colors.