Fix Solid nickname color

This was accidentally changed to the action color in squidowl#232.

src/theme/text.rs

@@ -1,7 +1,8 @@
-use super::Theme;
 use data::theme::{alpha, randomize_color};
 use iced::widget::text::{Appearance, DefaultStyle};
 
+use super::Theme;
+
 impl DefaultStyle for Theme {
     fn default_style(&self) -> Appearance {
         none(self)
@@ -49,14 +50,23 @@ pub fn transparent(theme: &Theme) -> Appearance {
 }
 
 pub fn nickname(theme: &Theme, seed: Option<String>, transparent: bool) -> Appearance {
+    let dark_theme = theme.colors().is_dark_theme();
+
+    if seed.is_none() {
+        let mut color = theme.colors().text.base;
+        if transparent {
+            color = alpha(color, if dark_theme { 0.2 } else { 0.4 })
+        }
+        return Appearance { color: Some(color) };
+    }
+
     let original_color = theme.colors().action.base;
     let randomized_color = seed
         .as_deref()
         .map(|seed| randomize_color(original_color, seed))
         .unwrap_or_else(|| original_color);
 
     let color = if transparent {
-        let dark_theme = theme.colors().is_dark_theme();
         alpha(randomized_color, if dark_theme { 0.2 } else { 0.4 })
     } else {
         randomized_color