diff --git a/public/images/sort_asc.png b/public/images/sort_asc.png
index 05dfa15f45ee6331fa73b6aa6fe222b383a66238..e9cb0f4f2e49be56c22bf943bfc5462071195597 100644
GIT binary patch
delta 69
zc$~Y=c#Uy_HYblHm#D`3quKi=niLw!c)B=-RNP8VaA0s_R8Z95Na5h(VvuxDo58@y
Yz`LB`eF$IFVFn=ZboFyt=akR{0L6L}8vp<R

delta 70
zc$~Y&c%5;AHYW=skExXKv9S3QO$v=<JzX3_DsCkwI54QODlA;WlA@uh$sp;lOhKUG
ZDTAa2<IF=2k<S@`z|+;wWt~$(69C)Q6te&T

diff --git a/public/images/sort_desc.png b/public/images/sort_desc.png
index f82d539175624b088e448595d770127adf49bee0..fc80a5cc9e64691046eb8bd9b3264fdc55575cfa 100644
GIT binary patch
delta 101
zc$~Y*c$IO2HYblHmnhHWWBvIPO^n&{^75uln>MjfVPXS|%dNxO91IK$j3q&S!3+-1
zZlnP@(w;7kAr-fh6Brni6&eK296QFQU>7jqW&<N5gIhb(X(R27T|i|Fp00i_>zopr
E0Jvfx<p2Nx

delta 105
zc$~Y+c$0C0HYW=sk15N`li7bJni#V&FfdG;Hf>^|!o&s^kCr+Ad4U3qB|(0{3=Yq3
zqyahdo-U3d6}OTT7#Nck5(HS7*xVc)8QBzsHBM+8XkcK_c*t1(QoKhTsFcCe)z4*}
HQ$iB}v}qpI

diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index 194be19..2d3ce9e 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -266,6 +266,7 @@ table.list thead th {
     text-align: center;
     background: #eee;
     border: 1px solid #d7d7d7;
+    color: #777;
 }
 
 table.list tbody th {