Rollup merge of #47721 - GuillaumeGomez:experimental-color, r=QuietMisdreavus
Rollup merge of #47721 - GuillaumeGomez:experimental-color, r=QuietMisdreavus

Fix experimental text display on default theme

r? @QuietMisdreavus

graydon/rust,aidancully/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust