UI: the website's colours, on every screen

The theme takes the website's palette, each a colour the RGB332 frame
buffer holds exactly: cyan for the accent, a selected row and a chosen
button in cyan with dark blue text, a slate Status Bar (the grey it
asked for was shown as a dull olive), the website's orange for
warnings and its pink for messages. "Good" (a Fix, the quietest
channel) keeps a green of its own, which the website doesn't have.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0162FokPdvY2KsS4NBfwyWPk

src/apps/ssh_app.cpp

@@ -424,7 +424,7 @@ void SshApp::drawTerminal(Canvas& c) {
             c.setFont(&fonts::small);
             c.setTextDatum(top_right);
             c.fillRect(area.x + area.w - 5 * static_cast<int>(where.size()) - 3, area.y, 5 * static_cast<int>(where.size()) + 3, 9, theme::kAccent);
-            c.setTextColor(0x0000);
+            c.setTextColor(theme::kOnAccent);
             c.drawString(where.c_str(), area.x + area.w - 1, area.y + 1);
             c.setTextDatum(top_left);
         }