docs: png and hint ported over

docs/dsl/hint.rst

@@ -1,2 +1,15 @@
 hint
-----
+====
+
+Toggle text hints globally. A text hint is a 1-pixel line drawn around the extents of a text box. They are intended to be temporary guides.
+
+Options
+-------
+
+text
+  default: ``:off``
+
+  The color of the text hint. See :doc:`/colors` To turn off use ``:off`` or ``nil``.
+
+Examples
+--------

docs/dsl/png.rst

@@ -1,2 +1,49 @@
 png
----
+===
+
+Renders PNG images.
+
+Options
+-------
+.. include:: /args/expansion.rst
+
+file
+  default: ``''``
+
+  file(s) to read in. As in :doc:`/arrays`, if this a single file, then it's use for every card in range. If the parameter is an Array of files, then each file is looked up for each card. If any of them are nil or '', nothing is done for that card.
+
+.. include:: /args/xy.rst
+
+width
+  default: ``:native``
+
+  the pixel width that the image should scale to. Supports :doc:`/units`. When set to ``:native``, uses the DPI and units of the loaded SVG document. Using ``:deck`` will scale to the deck width. Using ``:scale`` will use the ``height`` to scale and keep native the aspect ratio. Scaling PNGs is not recommended for professional-looking cards, and up-scaling a PNG will throw a warning in the console (see :doc:`/config`).
+
+height
+  default: ``:native``
+
+  the pixel height that the image should scale to. Supports :doc:`/units`. When set to ``:native``, uses the DPI and units of the loaded SVG document. Using ``:deck`` will scale to the deck height. Using ``:scale`` will use the ``width`` to scale and keep native the aspect ratio. Scaling PNGs is not recommended for professional-looking cards, and up-scaling a PNG will throw a warning in the console (see :doc:`/config`).
+
+alpha
+  default: 1.0
+
+  the alpha-transparency percentage used to blend this image. Must be between ``0.0`` and ``1.0``
+
+blend
+  default: ``:none``
+
+  the composite blend operator used when applying this image. See Blend Modes at http://cairographics.org/operators.
+  The possibilties include :none, :multiply, :screen, :overlay, :darken, :lighten, :color_dodge, :color_burn, :hard_light, :soft_light, :difference, :exclusion, :hsl_hue, :hsl_saturation, :hsl_color, :hsl_luminosity. String versions of these options are accepted too.
+
+mask
+  default: ``nil``
+
+  Accepts a color (see :doc:`/colors`). If specified, the image will be used as a mask for the given color/gradient. Transparent pixels are ignored, opaque pixels are the given color. Note: the origin for gradient coordinates is at the given x,y, not at 0,0 as it is most other places.
+
+.. include:: /args/transform.rst
+
+.. include:: /args/range.rst
+.. include:: /args/layout.rst
+
+Examples
+--------