About the white theme UI

This is a very good software, I also very like this software, I look at the issue on the UI, before find the author in the performance of the software, a stable work for the head, this is very worthy of praise and affirmation, I also slightly a little advice, here is the software UI theme, the white part of the highlight color shallow, not seem particularly outstanding, The effect is not as good as the black theme, I hope the highlight color under the white theme can be deepened, please refer to the author, thank you!

Start by locating the white-theme UI color definitions and comparing the highlight color with the black theme. Confirm the intended adjustment with maintainers, then verify that the white theme's highlights have stronger contrast without disrupting other UI elements.

Written by the indexing model from the issue text.