iris: make font families application-named strings

app/src/ui/tool.rs

@@ -80,18 +80,14 @@ fn text<Rsc>(content: impl Into<String>, size: f32, color: PaintId) -> TextBuild
 }
 
 fn disclosure<Rsc>(glyph: &'static str, theme: &Theme) -> TextBuilder<Rsc> {
-    text(glyph, MARK_DP, theme.muted.clone()).family(Family::Icons)
+    text(glyph, MARK_DP, theme.muted.clone()).family(super::ICON_FAMILY)
 }
 
 fn raw_block<Rsc: HasEvents>(rsc: &mut Rsc, body: TextBuilder<Rsc>, theme: &Theme) -> StrongWidget
 where
     Rsc::State: FocusHost,
 {
-    let field = body
-        .family(Family::Monospace)
-        .size(BODY_SIZE)
-        .wrap(false)
-        .add(rsc);
+    let field = body.family(MONOSPACE).size(BODY_SIZE).wrap(false).add(rsc);
     field
         .scrollable(Axis::X, Pin::Start)
         .pad(dp(RAW_PAD_DP))