Revert "Transient tabs are now recognisable, thanks to a transparent bg"

This reverts commit c18bcdf.

Author: wesbos

Cobalt2.sublime-theme

@@ -50,12 +50,6 @@
         "attributes": ["selected"],
         "layer0.texture": "Theme - Cobalt2/Cobalt2/tab-active.png"
     },
-    // Tab transient state
-    {
-        "class": "tab_control",
-        "attributes": ["transient"],
-        "layer0.opacity": 0.1
-    },
     // Tab dirty state (close button hidden)
     {
         "class": "tab_control",
@@ -215,19 +209,6 @@
         "fg": [230, 230, 230],
         "shadow_color": [35, 35, 35]
     },
-    // Transient tab label, when not selected
-    {
-        "class": "tab_label",
-        "attributes": ["transient"],
-        "fg": [140, 140, 140]
-    },
-    // Transient tab label, when selected
-    {
-        "class": "tab_label",
-        "attributes": ["transient"],
-        "parents": [{"class": "tab_control", "attributes": ["selected"]}],
-        "fg": [230, 230, 230]
-    },
 
 //
 // FOLD BUTTONS