Gutenberg CSS Always Uses Hex Value

I created a color with an alpha channel. I noticed that when I apply the color as a background to a Gutenberg block, the alpha isn’t used.

Looking at the code, I noticed that get_gutenberg_palette() always returns $set[‘hex’]. When I modify the code to return $set[‘color’] then the rgba value is used instead and the alpha is applied correctly. I was wondering if this is intentional behavior or a bug?

My environment:
Plugin version: 1.14.7
WP Version: 5.4.1
Theme: Custom

Steps to reproduce:
1) Install plugin version 1.14.7
2) Enable plugin and configure as follows:
– Add to theme customizer: No
– Add to block editor: Yes
– Append to existing palette: Yes
– Enforce colors: No
– Add to classic editor: Yes
– Add global CSS variables to themes: No
– Add global CSS variables to the dashboard: No
3) Add a single color with value rgba(255,0,0,0.5)
4) Save
5) Open a page with Gutenberg
6) Select a block and open it’s color settings
7) Choose the transparent red color created on step 3
8) Save and visit the page
9) You will notice the block has the correct color but no alpha