Minor Ui Improvements (#2713)

webapp/utils/utils.jsx

@@ -674,6 +674,7 @@ export function applyTheme(theme) {
         changeCss('.app__body .attachment__content', 'background:' + theme.centerChannelBg, 1);
         changeCss('body.app__body', 'scrollbar-face-color:' + theme.centerChannelBg, 2);
         changeCss('body.app__body', 'scrollbar-track-color:' + theme.centerChannelBg, 2);
+        changeCss('.app__body .post-list__new-messages-below', 'color:' + theme.centerChannelBg, 1);
     }
 
     if (theme.centerChannelColor) {
@@ -730,6 +731,7 @@ export function applyTheme(theme) {
         changeCss('body', 'scrollbar-arrow-color:' + theme.centerChannelColor, 4);
         changeCss('.app__body .modal .about-modal .about-modal__logo svg, .app__body .post .post__img svg', 'fill:' + theme.centerChannelColor, 1);
         changeCss('.app__body .scrollbar--horizontal, .app__body .scrollbar--vertical', 'background:' + changeOpacity(theme.centerChannelColor, 0.5), 2);
+        changeCss('.app__body .post-list__new-messages-below', 'background:' + changeColor(theme.centerChannelColor, 0.5), 2);
     }
 
     if (theme.newMessageSeparator) {