Hello,
I use Weaver Xtreme 4.3.1.4 and I have a problem with the blocks. In the blocks is the color of the font and the color of the background always white and I can’t change it. I tried to fix it editing the assets/css/blocks-editor-base-style.min.css. I insert the color in .wp-block{max-width:1000px;color:#666666}. Now the text in the block has the color #666666 but when I click in the block the color of the text is still white. I can only make it visible when I mark the whole text in the block.
3 screenshots of the problem: 
Does anyone has an idea how I can fix it?