fix foreground overloading

Author: elcritch

src/figuro/ui/text.nim

@@ -61,9 +61,13 @@ proc text*(node: Text, text: string) {.thisWrapper.} =
 proc font*(node: Text, font: UiFont) {.thisWrapper.} =
   node.font = font
 
-proc foreground*(node: Text, color: Color) {.thisWrapper.} =
+proc foreground*(node: Text, color: Color) =
   node.color = color
 
+template foreground*(color: Color)  =
+  mixin foreground
+  this.foreground(color)
+
 proc align*(node: Text, kind: FontVertical) {.thisWrapper.} =
   node.vAlign = kind
 

tests/tinput2.nim

@@ -82,7 +82,7 @@ proc draw*(self: Main) {.slot.} =
               skipOnInput ':'
             if this.disabled:
               fill this.fill.darken(0.4)
-              this.foreground css"grey"
+              foreground css"grey"
             proc overrideUpdateInput(this: Input, rune: Rune) {.slot.} =
               let isDigit = rune <=% Rune('9') and rune.char in {'0'..'9'}
               template currCharColon(): bool = this.text.runeAtCursor() == Rune(':')