為了保護眼睛，決定把白色背景換掉：
1 首先，在已經(jīng)下載好的Python文件目錄下，找到config-highlight.def文件，我的是在H:\python\python3**\Lib\idlelib**文件夾下。
2.打開文件后，你會看到一些默認的顏色配置，比如經(jīng)典的顏色配置就是白色背景，一般這個文件中會有兩種配置可供選擇：
[IDLE Classic]和
[IDLE New]，表現(xiàn)在IDLE界面上就是在python shell下，選擇options—configure IDLE—-highlighting選項中，右側(cè)的highlighting theme主題選擇，有兩種可選方案，就上文件中的那兩種。
3.如果直接在源文件上修改顏色有些麻煩，除非你特別熟悉顏色。網(wǎng)上有經(jīng)典的背景配置：

[Obsidian]
definition-foreground = #678CB1
error-foreground = #FF0000
string-background = #293134
keyword-foreground = #93C763
normal-foreground = #E0E2E4
comment-background = #293134
hit-foreground = #E0E2E4
builtin-background = #293134
stdout-foreground = #678CB1
cursor-foreground = #E0E2E4
break-background = #293134
comment-foreground = #66747B
hilite-background = #2F393C
hilite-foreground = #E0E2E4
definition-background = #293134
stderr-background = #293134
hit-background = #000000
console-foreground = #E0E2E4
normal-background = #293134
builtin-foreground = #E0E2E4
stdout-background = #293134
console-background = #293134
stderr-foreground = #FB0000
keyword-background = #293134
string-foreground = #EC7600
break-foreground = #E0E2E4
error-background = #293134

[tango]
definition-foreground = #fce94f
error-foreground = #fa8072
string-background = #2e3436
keyword-foreground = #8cc4ff
normal-foreground = #ffffff
comment-background = #2e3436
hit-foreground = #ffffff
break-foreground = #000000
builtin-background = #2e3436
stdout-foreground = #eeeeec
cursor-foreground = #fce94f
hit-background = #2e3436
comment-foreground = #73d216
hilite-background = #edd400
definition-background = #2e3436
stderr-background = #2e3436
break-background = #2e3436
console-foreground = #87ceeb
normal-background = #2e3436
builtin-foreground = #ad7fa8
stdout-background = #2e3436
console-background = #2e3436
stderr-foreground = #ff3e40
keyword-background = #2e3436
string-foreground = #e9b96e
hilite-foreground = #2e3436
error-background = #2e3436
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直接把上面的代碼copy到剛才打開的config-highlight.def文件中，然后重啟shell就可以。
重啟后，shell會默認選擇原來的。你就在highlighting theme主題中查看，此時已經(jīng)多了兩種主題，就是你剛才添加的。

主題名字為tango..
大功告成。。

字體的修改

在setting中，如果你設(shè)置的字體是中文字體，再怎么修改大小也是沒有用的。必須把字體改為英文字體才行。。