[BUG]: Button colors not being set

[cy-rybicki]

Steps to Reproduce

Theme.lvclass:Apply Style - Simple Dialogue.vi
Button colors are being set based on the background color rather than the three button colors set in the theme

Expected vs. Actual Behavior

Expectation: button colors set in the theme are applied to the buttons
Actual Behavior: button colors match background and hover color is set based on the output of Pick Button Hover.vi