Text: prefix private variables with an underscore.

src/Magnum/Text/DistanceFieldGlyphCache.cpp

@@ -46,7 +46,7 @@ DistanceFieldGlyphCache::DistanceFieldGlyphCache(const Vector2i& originalSize, c
     #else
     GlyphCache(GL::TextureFormat::RGB, originalSize, size, Vector2i(radius)),
     #endif
-    scale(Vector2(size)/Vector2(originalSize)), radius(radius)
+    _scale{Vector2(size)/Vector2(originalSize)}, _radius{radius}
 {
     #ifndef MAGNUM_TARGET_GLES
     MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::texture_rg);
@@ -89,7 +89,7 @@ void DistanceFieldGlyphCache::setImage(const Vector2i& offset, const ImageView2D
     #endif
 
     /* Create distance field from input texture */
-    TextureTools::distanceField(input, texture(), Range2Di::fromSize(offset*scale, image.size()*scale), radius, image.size());
+    TextureTools::distanceField(input, texture(), Range2Di::fromSize(offset*_scale, image.size()*_scale), _radius, image.size());
 }
 
 void DistanceFieldGlyphCache::setDistanceFieldImage(const Vector2i& offset, const ImageView2D& image) {

src/Magnum/Text/DistanceFieldGlyphCache.h

@@ -85,8 +85,8 @@ class MAGNUM_TEXT_EXPORT DistanceFieldGlyphCache: public GlyphCache {
         void setDistanceFieldImage(const Vector2i& offset, const ImageView2D& image);
 
     private:
-        const Vector2 scale;
-        const UnsignedInt radius;
+        const Vector2 _scale;
+        const UnsignedInt _radius;
 };
 
 }}