diff --git a/README.md b/README.md
index dbc2f3e..335e174 100644
--- a/README.md
+++ b/README.md
@@ -23,3 +23,47 @@ From top to bottom the experiments are:
    interpolated linearly by
     alpha = (x - left)/(right - left)
     color = (1,1,1)*(1 - alpha) + (0,0,0)*(alpha)
+
+2. Pulls out three colors into solid color blocks:
+    (0,0,0), (0.5,0.5,0.5), and (1,1,1)
+
+3. Tests sRGB -> Linear approximation function. (Right side only)
+   Compares two discrete gray pallets.
+   The top shows 16 levels of gray by sampling them from an SRGB texture.
+   The bottom shows the same 16 gray values with the input colors converted
+   from sRGB -> Linear by x^2.2 instead of by texture sampling.
+
+4. Tests color gradients
+    (1,0,0) >>> (1,1,0) 
+    (1,1,0) >>> (0,1,0) 
+    (0,1,0) >>> (0,1,1) 
+    (0,1,1) >>> (0,0,1) 
+    (0,0,1) >>> (1,0,1) 
+    (1,0,1) >>> (1,0,0) 
+
+5. Tests partial transparency
+   3 horizontal stripes - opaque
+   3 vertical stripes   - alpha = 0.5
+   3 vertical stripes   - alpha = 0.75
+
+6. Tests rectangle anti-aliasing by drawing rectangles with a width
+   of 2 placed at various sub-pixel positions
+
+7. Tests circle anti-aliasing by drawing three circles of various
+   radii. The circle anti-aliasing is computed with a highly accurate
+   area-under-the-curve integration method - see the "sanity test"
+   functions for how the accuracy of the pixel coverage is verified.
+
+8. Tests circle anti-aliasing with colored backgrounds and shape colors
+   to see if anti-aliasing gives rise to any colored fringes.
+
+In the top-left corner there is a gamma calibration test image. The
+top left corner is "0.5 Gray" in the "Linear color space" and the
+bottom right corner is "0.5 Gray" in the "sRGB color space". The other
+two corners are identical black-and-white checkerboards. When squinting
+to physically blur the checkerboard, the brihgtness should resemble the
+brightness of the top left corner on a correctly calibrated monitor.
+
+The anti-aliasing of the rectangles and circles should also look better
+on linear color space side for a correctly calibrated monitor.
+